Chapter 18: Male Genitourinary Problems Assessment

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Welcome back to the Deep Dive.

We are really glad you're here with us today.

We are tackling a subject that can be a little intimidating for students and honestly can be pretty uncomfortable for patients too.

Yeah, that's putting it mildly.

We are opening up chapter 18 from Advanced Health Assessment and Clinical Diagnosis in Primary Care, the sixth edition specifically.

That's right.

The chapter is titled, Genitourinary Problems in Patients with Male Genitalia.

Which, you know, it sounds a bit dry on the surface, but when you actually start reading through this material, you realize it is a minefield.

You have conditions that are just annoying nuisances sitting right next to surgical emergencies and, well, life -threatening cancers.

It covers a massive territory, a really massive territory, and the stakes are incredibly high.

The challenge with this chapter and with this body system in general is that the symptoms often overlap.

They all kind of sound the same at first glance.

Exactly.

A harmless infection can feel a lot like a dangerous obstruction, and your job is to tell the difference and tell it quickly.

And our mission today is pretty specific.

We know our listener is likely a college student or an advanced practice nursing student.

You've probably done the anatomy reading.

You know where the kidneys are.

You have a rough idea of what the prostate does.

Sure.

The basic blueprint.

But we need to bridge that gap between I know what this organ is to I know exactly what is wrong with it when a patient walks in clutching their side.

Exactly.

We want to move from just reading the text to really understanding the clinical reasoning behind it.

Because when you're in primary care, patients don't walk in with a label on their forehead saying, I have pylonephritis.

No, definitely not.

They walk in with a story.

Usually with this system, it's a story they're embarrassed to tell.

They've probably been putting it off for weeks.

So let's set the stage.

What is the scope of the problem here?

When we say genitourinary problems in this population, what are we actually dealing with?

Well, anatomically, you have to think about three distinct but connected systems.

You really can't separate them in practice.

You have the renal tract.

So the kidneys and ureters, the upper level, the upper level, right?

Then you have the urologic tract, the bladder and urethra.

And finally, the reproductive tract, the testes, prostate, epididymis, all of it.

And they're all plumbed together.

They share the same exit strategy, basically.

So a problem in the reproductive system, like in a large prostate,

it ends up causing a problem in the urinary system, like urinary retention.

So you can't just look at one part in isolation.

You have to look at the whole map.

You have to understand how a blockage here can cause a backup all the way up there.

In reading through this chapter, one thing that jumped out at me is how tricky the symptoms can be.

I mean, sometimes the pain is right where the problem is.

Right.

Localized.

That's the easy one.

Yeah.

But a lot of the time, it's vague.

Or it's referred pain, which is just confusing.

But the why of the complexity here, it comes down to embryology, actually.

As a fetus develops, these organs, they migrate.

The kidneys start low in the pelvis and move up.

I didn't know that.

Yeah.

And the testes start high up in the abdomen and move down into the scrotum.

But here's the key.

They drag their nerve supplies with them.

Ah, so the wiring gets crossed, so to speak.

It's not crossed.

It's just long.

The nerve that serves the kidney still has roots that connect to areas lower down.

So a problem in the kidney, which is high up in the back, might not feel like back pain at all.

It might feel like groin pain or testicular pain.

So if a patient complains of testicular pain, my first thought might be, okay, problem with the testicle, but I can't just look at the testicle.

I have to think about the kidney.

You have to.

You absolutely have to look at the whole roadmap.

That's why the history taking is so vital.

It's more than half the battle.

You have to be a detective to figure out the actual source of the fire, not just the location of the smoke.

Okay, okay.

Before we get into the interrogation techniques, let's talk about the usual suspects.

Who gets what?

Does age play a role?

Age is a huge filter, a massive one.

For example, inflammation of the lower urinary tract, so cystitis and urethritis, is actually pretty infrequent in children and adolescents.

If you see it there, your brain should immediately start thinking about congenital structural anomalies.

Is there something they were born with that's causing this?

But as patients age, the frequency just goes up and up.

And what about the bugs,

the pathogens?

What are we usually fighting here?

Ascorica E.

coli.

E.

coli is the usual gram negative pathogen you're going to see.

It's the king.

It causes the vast majority of these infections.

Okay, so think E.

coli first.

Yes.

However, and this is a big however, if you have a patient under age 40, you have to shift your thinking.

Why is that?

What changes at 40?

Sexually transmitted infections become a much bigger player.

In patients younger than 40, the text is very clear that chlamydia trachomatis becomes a major cause of sexually transmitted prostatitis and non -gonococcal urethritis.

So under 40, think STIs should be high on my differential.

Always keep it on the radar.

Always.

But for recurrent UTIs, or in older populations, the microbiome shifts again.

It gets more complicated.

You might see resistant gram negative organisms like clebsiella, interbacter, pseudomonas, or proteus mirabilis.

The tougher bugs.

The tougher bugs that don't respond to the first line, simple antibiotics.

And we can't talk about aging men without talking about the prostate.

It's like the central character in this story.

We really can't.

Benign prostatic hyperplasia, or BPH, it's a massive factor.

The text notes that BPH is common after age 50.

But look at the frequency.

It hits as high as 80 % after age 80.

80%.

That is practically a physiological inevitability.

It's not a disease.

It's just aging.

It effectively is.

It's almost an inevitability of aging for many.

And because the prostate wraps around the urethra like a donut, as it grows, the hole in the donut gets smaller.

And the urine can't get through as easily.

Exactly.

And that leads to all those obstructive symptoms we'll talk about later.

The weak stream, the dribbling, all of it.

Okay, so we have the landscape.

We know the players.

Let's unpack the history.

The patient is in the room.

They look uncomfortable.

Where do we start?

We start with the diagnostic reasoning, specifically the focused history.

And the very first thing you need to do is filter for danger.

Is this a localized nuisance or a systemic emergency?

Okay, so triage mode.

What are the red flags?

What am I listening for?

Fever and chills.

It seems so basic, like first day of nursing school basic.

It is basic, but it is pivotal.

It's the great differentiator.

If a patient with male genitalia presents with urinary symptoms burning, urgency, and has a fever or chills, the text says this suggests the patient is acutely ill.

It immediately moves your diagnosis away from simple cystitis.

It tells us the infection has breached the local defenses.

It's not just in the bladder anymore.

Exactly.

It implies the infection has ascended to the kidneys.

That's pilonephritis.

Or it's a deep systemic infection of the prostate,

acute prostatitis.

Or maybe lethiasis stones in the upper tract, causing an obstruction and a secondary infection.

So the presence of a fever changes my entire plan.

Completely.

It means you aren't just writing a script for a mild antibiotic and sending them home.

You are evaluating for something much more serious that might need hospitalization.

And I noticed the text has a specific warning about immunocompromised patients.

Yes.

This is a stop and think moment.

A full stop.

If a patient is HIV positive on chemotherapy, a transplant recipient on immunosuppressants,

they are susceptible to overwhelming infection.

And not by the usual bugs, right?

Sometimes by atypical organisms, yes.

You cannot take a wait and see approach with them.

The book is clear.

Aggressive investigation is warranted immediately.

You have a much lower threshold to admit them.

Okay, let's talk about outquant.

Or rather, the lack of it.

Anuria.

Anuria.

This is defined as a sudden decrease in urinary output to less than 100 milliliters per day.

100 milliliters?

That's less than half a cup.

Right.

Or sometimes it's just the complete non -passage of urine.

The patient says, I haven't peed since yesterday morning.

That sounds incredibly dangerous.

It is a medical emergency.

And to diagnose it, the chapter breaks it down into three categories.

Pre -renal,

intra -renal, and post -renal.

This is a classic medical school framework, but it's the only way to think about acute kidney failure.

Let's break those down.

Pre -renal.

What does that mean?

Pre -renal means before the kidney.

The kidney itself is fine, but the blood supply is compromised.

The plumbing to the kidney is the problem.

So not enough blood getting to the filter.

Exactly.

Maybe the patient is severely volume depleted, dehydrated from vomiting or diarrhea,

or they have very low cardiac output from heart failure.

The pump isn't getting blood to the filter, so the filter can't make urine.

Okay.

Makes sense.

Intra -renal.

Inside the kidney.

Now, the problem is with the filter itself.

There is damage to the kidney tissue, the glomeruli, or the tubules.

This could be from nephrotoxic agents, certain antibiotics,

contrast dye, or autoimmune diseases.

The kidney is broken.

And post -renal.

After the kidney.

This means obstruction.

The plumbing after the kidney is blocked.

The urine is being made, but it can't get out.

A big kidney stone, BPH, a tumor.

All of the above.

A complete blockage.

Now, here's where it gets really interesting for me.

The text mentions a clinical pearl about which one you rule out first, and it's not what I would have guessed.

Yes.

You always, always rule out post -renal failure first.

Why is that?

It seems like pre -renal dehydration would be the most common.

It might be, but post -renal is the most fixable,

and the most time -sensitive in a reversible way.

If there is an obstruction,

a mechanical intervention, like a Foley catheter or surgical stent, can reestablish kidney function before permanent damage occurs.

You don't want to spend three days working up a complex interrenal disease with blood tests and biopsies while the patient's kidneys are backing up and dying because of a simple blocked ureter.

Time is tissue.

Exactly.

Time is nephrons.

You look for the blockage first because you can clear the blockage.

It's the low -hanging fruit of saving a kidney.

Moving from no urine to blood in the urine,

hematuria.

This is an aha moment for me when reading the chapter.

The timing of the blood actually matters.

It matters immensely.

It's a brilliant piece of low -tech diagnostics.

It's one of the most important questions you can ask.

You have to ask the patient very specifically, when do you see the blood?

So walk us through the three scenarios the book lays out.

Okay, scenario one, initial hematuria.

The patient says, the blood is there right at the start of the stream, but then the urine clears up as I keep going.

What does that tell us?

Where's the problem?

It strongly suggests the problem is in the anterior urethra, the front part of the tube.

Think urethritis, a stricture, or medial stenosis.

The blood is sitting right near the exit, so it gets washed out first.

Makes sense.

Okay, scenario two, terminal hematuria.

This is the opposite.

The patient says the urine starts out clear, but then it becomes bloody right at the very end of the stream.

And that points where?

That suggests prostatic lesions or lesions in the prostatic urethra or bladder neck.

As the bladder squeezes down, with that final contraction to empty itself,

it squeezes that inflamed or vascular area, wringing out the blood.

Wow, okay.

And scenario three, total hematuria.

Blood throughout the entire stream.

From start to finish, it's all pink or red.

And that suggests a problem from higher up the system.

That's usually higher up.

Lesions in the kidneys or the ureters.

Or a significant bladder lesion that's bleeding continuously.

The blood is mixed thoroughly with the urine in the bladder before it even starts to exit.

That is such a useful diagnostic trick just from a simple question.

But there's another distinction the text makes regarding hematuria.

Pain versus painless.

This is critical.

Absolutely critical.

Painful hematuria usually points to a stone or an infection.

It hurts because something is scraping its way down the ureter or the bladder is severely inflamed.

So the pain is actually, in a weird way, a good sign.

It points to something acute and probably treatable?

In a way, yes.

But painless hematuria.

That's the one you worry about?

Painless gross hematuria is a silent alarm.

It is the classic presentation for tumor's bladder cancer or kidney cancer.

Especially in older adults, painless hematuria can be a late sign of renal cancer.

You never, ever ignore painless blood in the urine.

It's cancer until proven otherwise.

That's a sobering thought.

Let's shift gears to the plumbing issues.

Obstructive symptoms.

We mentioned BPH earlier.

What does the patient actually complain about?

How does it sound in their own words?

They'll talk about hesitancy.

They'll say, I stand there and I wait and it takes forever to get started.

Or a slow stream.

It's just not as strong as it used to be.

Dribbling at the end is a big one.

They think they're done.

They zip up and then they leak in their pants.

And nocturia waking up at night.

Yes, nocturia waking up at night to pee.

That's often what drives them to the doctor.

It's not the weak stream.

It's the fact that they haven't slept through the night in five years.

And the text introduces a specific tool for this, right?

The AUA symptom index.

Table 18 .1 in our deep dive.

This seems really useful.

It's incredibly useful.

It's the American Urological Association symptom index.

And it's a questionnaire that helps quantify how bad the BPH is.

It turns those vague complaints into hard data you can track over time.

How does it work?

What kind of questions does it ask?

It's a zero to five scale for seven different questions.

Not at all a zero.

Almost always is five.

And it asks things like, over the past month, what has been the sensation of not emptying your bladder completely?

Or how often have you had to stop and start again several times when you urinated?

So it covers all the symptoms we just mentioned.

Hesitancy, weak stream.

Weak stream, straining, urgency, nocturia.

All seven key symptoms.

And the score guides the treatment.

Exactly.

You sum up the scores.

Zero to seven is mild.

We generally just do watchful waiting.

Eight to 19 is moderate.

Now we're thinking about starting medications like alpha blockers or five alpha reductase inhibitors.

And if it's really high?

20 to 35 is severe.

That's when you start having a conversation about surgical options, like a TUR procedure.

It standardizes the suffering, in a way, and gives you a clear path for management.

Speaking of emptying the bladder, let's talk about retention.

The text distinguishes between acute and chronic.

How are they different?

Acute retention is an emergency.

It's sudden and it's usually extremely painful.

The patient has a full bladder but absolutely cannot void.

They are in agony.

So they come to the ER?

They come to the ER often doubled over.

Chronic retention is different.

It's the inability to completely empty, but it might be painless.

The bladder stretches slowly over time, months or years, and it loses its sensation and its muscle tone.

They might be walking around with a liter of urine in their bladder and not even feel it.

And there's a note here about a special population regarding retention.

This is an important one.

Yes, transgender women.

The text notes that the practice of tucking scrotal contents into the inguinal canal to create a smoother silhouette can sometimes cause urethral compression and lead to retention.

So it's a mechanical issue?

It can be.

And it's an important history question to ask respectfully and privately if you have a transgender patient presenting with urinary issues.

It could be a simple mechanical issue related to that practice.

Let's move to pain mapping.

Patients aren't always great at explaining where the pain is.

But if we can get them to pinpoint it, it tells us a lot.

It does.

Location is key.

If they point to the low back or flank, specifically the costovertal angle or CVA, that's the spot in your back where your bottom rib meets your spine,

we think kidney or ureter.

What does that pain feel like?

A dull, constant ache there is often the kidney capsule stretching from inflammation or a blockage.

Pylonopritis pain.

And what about colicky pain?

I hear that term a lot.

Colicky pain comes in waves.

It's a 10 out of 10 intense writhing pain that it eases off to a four, then it screams back to a 10.

That is the hallmark of a hollow tube, like the ureter trying to squeeze something solid through it.

A kidney stone.

The absolute classic for a kidney stone moving through the ureter.

And it radiates, it starts in the flank, and it shoots down into the groin and into the testes.

What about scrotal pain itself?

That seems like it would be more straightforward.

You'd think so.

But acute scrotal pain is a major fork in the road.

It presents a diagnostic emergency.

Is it infection, like epineumitis,

or is it torsion, which is a surgical emergency where the testicle has twisted on its cord?

And we have to figure that out fast.

Very fast.

We'll get to how to tell the difference in the physical exam.

But history -wise, a sudden severe onset, maybe waking them from sleep, is your red flag for torsion.

And then there's this perineal ache.

Where exactly is that?

The perineum is the area between the scrotum and the anus.

Patients often describe pain there vaguely.

They might just say, it aches down there, or it feels like I'm sitting on a golf ball.

And that points to?

It usually points to the prostate.

Prostatitis often presents as this deep, vague, hard -to -describe perineal ache.

Now, before we get to the physical exam, we have to ask about social history and lifestyle.

And I found the bit about bicycle riding fascinating.

Ah, yes, the cyclist syndrome.

Yeah, it sounds like a made -up condition, but the anatomy makes perfect sense when you read it.

It's just physics.

If you sit on a narrow, hard bike seat for hours on end, you are putting your entire body weight right on the perineum.

It can compress the pudendal nerve and the blood vessels against the pubic bone.

Like pinching a garden hose.

Exactly.

And what does that feel like to the patient?

Numbness, I guess.

Numbness.

Perineal and penile numbness.

But, characteristically, without pain.

If a patient report into that, you have to ask about their cycling habits.

The solution might just be adjusting the seat, getting a wider one, or taking a break.

And obviously, sexual history is relevant here, too, as we mentioned before.

How vital.

You have to ask about it.

Number of partners, use of protection.

These increase the risk for STIs, which leads to urethritis and prostatitis.

You have to normalize the question.

I ask all my patients with these symptoms about their sexual health.

And one last lifestyle factor the book brings up, toxins.

Yes, occupation matters.

Exposure to certain industrial chemicals like benzene, or working in industries like rubber or leather manufacturing, significantly increases the risk of bladder cancer over a lifetime.

So if a 60 -year -old leather worker comes in with painless hematuria...

Your alarm bells should be ringing very, very loudly.

Okay, so we've taken a thorough history.

We have a good idea of what might be going on.

Now we have to touch the patient.

Let's walk through the focused physical examination.

And it starts the moment you walk in the door.

General appearance.

Does the patient look toxic?

What does a toxic patient look like clinically?

What am I seeing?

They look sick.

They might be shivering, having rigors from chills.

They're pale, sweaty, maybe curled up on the exam table protecting their body.

That's the picture that fits with pilonephritis or acute bacterial prostatitis.

And a patient with just a simple bladder infection.

A patient with simple cystitis or urethritis generally looks well.

They're uncomfortable.

They're fidgety because they have to pee, but they don't look systemically ill.

And the skin?

Anything to look for there?

Look for pallor, which could be a sign of anemia from chronic renal failure.

Or that yellowish -brown, salotint of uremia if their kidneys have really failed.

Moving to the abdomen.

We talked about CVA tenderness in the history.

How do we actually test for it on exam?

We call it the kidney punch, though technically it's percussion, not a punch.

You place one hand flat over the cost of vertebral angle on the patient's back.

And you give that hand a firm thump with the fist of your other hand.

Not too hard, just a solid jolt.

And if they have pilonephritis?

It will hurt a lot.

It reproduces the pain from the distension of the inflamed kidney capsule.

It might jump off the table or yelp.

It's a very specific and reliable sign.

You also mentioned listening to the abdomen, auscultation.

Yes.

Specifically, if the patient has high blood pressure that's hard to control, you want to listen with your stethoscope for brutes over the renal arteries, on either side of the umbilicus.

What are we listening for?

A whooshing sound.

It's the sound of turbulent blood flow, which could indicate renovascular hypertension, a narrowing, or stenosis of the arteries feeding the kidneys.

And palpation of the bladder.

Right.

A normal empty bladder isn't palpable.

It sits behind the pubic bone.

But a distended bladder from retention rises up above the symphysis pubis.

You can feel it.

Sometimes you can even see it.

What does it feel like?

It feels smooth and round and firm, kind of like a water balloon.

And remember our discussion on chronic retention.

It might be completely painless to them.

So your hands are the diagnostic tool here, not their symptoms.

Okay, getting to the genitalia inspection.

We're looking for lesions, discharge.

And for uncircumcised men, we're checking the foreskin.

What are we looking for?

Two things, specifically.

You check for fomosis.

That's where the foreskin is too tight and cannot be retracted back over the head of the penis.

And parafomosis.

And parafomosis is the dangerous one.

Parafomosis is the emergency.

That's where the foreskin is retracted, but it gets stuck behind the head of the penis and can't be pulled forward again.

Why is that an emergency?

It acts like a tourniquet.

It cuts off venous return.

The head of the penis swells up, making the constriction even tighter.

It's a urologic emergency that needs immediate reduction.

And the metis, the opening.

Check the position and for any signs of inflammation.

And then you gently strip or milk the penis from the base to the glands to check for any urethral discharge.

If something comes out, you need to get a sample and culture it.

Now, the scrotal exam.

This is where the text gets really technical with some cool diagnostic tricks.

First, just the basic technique.

You palpate the testes, the epididymis, and the spermatic cord one side at a time.

You're feeling for masses, tenderness, swelling.

You should feel the testes, which is firm and smooth, and the epididymis, which is a softer structure on the back of the testes.

And then you turn out the lights.

Right.

Transillumination.

This is the flashlight test.

In a dark room, you shine a bright light, like a pen light, through the scrotum from behind the mass.

What are we looking for?

How does it help?

Light passes through fluid.

So if the mass glows with a red hue, it's likely a hydrocele, which is a benign collection of fluid.

If the mass blocks the light, if it's dark and opaque, it's a solid mass.

Which could be a tumor.

It could be a tumor or a hernia.

It tells you this needs more investigation, probably an ultrasound.

A very simple but powerful test.

And then there's the pre -insign.

This is used to differentiate between those two very painful conditions, epididymitis and testicular torsion.

How does it work?

You gently lift the affected testicle toward the abdomen.

Okay.

And then you ask the patient what happens.

You ask them if it makes the pain better or worse.

If lifting the testicle relieves the pain,

that is a positive pre -insign.

And a positive sign suggests?

It suggests epididymitis.

The thinking is you're taking the weight and pressure off the inflamed epididymis, which provides some relief.

And if it doesn't help, or makes it worse?

If lifting it does not relieve the pain, a negative pre -insign, you have to be highly suspicious of testicular torsion.

The cord is twisted,

lifting it isn't going to untwist it, and may even increase the tension.

And what about the bag of worms?

That description is so memorable.

That's the classic description of a varicoseal.

It's a collection of dilated veins in the scrotum, usually on the left side.

It feels squishy and irregular, like a bag of worms.

And there's a positional trick for this too, right?

Yes.

A varicoseal often disappears, or gets much smaller when the patient lies down, because gravity helps the blood drain out of those dilated veins.

If it stays large when they're lying down, or if it's on the right side, that's a bit of a red flag for something blocking the vein higher up in the abdomen, like a tumor.

Okay, finally, the part of the exam no one looks forward to.

The digital rectal examination, the DRE.

The part every patient dreads, but it gives us so much data we can't get any other way.

We're palpating the posterior surface of the prostate through the anterior rectal wall.

We're checking size and consistency.

What do the different textures mean?

What am I feeling for?

A normal prostate feels like the tip of your nose.

It's firm, but it has some give.

It's rubbery.

If it feels boggy, like a mushy sponge, and is exquisitely tender, you should think inflammation or infection, like prostatitis.

And the worst case scenario?

If it feels stony hard, or has a hard irregular nodule on it, that is a major red flag for advanced carcinoma.

That's not a subtle finding.

It feels like a rock.

And there's a grading scale for size?

Yes.

Grade one to four, which is a bit subjective, but it's based on how far the prostate protrudes into the rectum.

Grade four is less than one centimeter.

Grade four is more than three centimeters, where it's really bulging in.

Now, there is a massive critical warning in the text about the DRE.

A do not pass go warning that's highlighted.

This is absolutely vital.

You must remember this.

If you suspect acute bacterial prostatitis, meaning the patient has that high fever, the chills, the perineal pain we talked about,

you do not massage the prostate.

Why not?

What's the risk?

Because the gland is hot, it's swollen, and it's filled with bacteria.

If you massage it vigorously, you can literally squeeze that bacteria into the bloodstream.

You can cause bacteremia and life -threatening sepsis.

So what do you do instead?

You palpate it very, very gently just to confirm that it's swollen and tender, and then you stop.

No massage.

No aggressive probing.

That is life -saving tip right there.

Don't massage an acutely infected prostate.

It's one of the cardinal rules.

Moving on to laboratory and diagnostic studies.

We've done the history.

We've done the exam.

Now we need proof.

And you start with the basics.

Urinalysis.

The UA is your best friend.

Does freshness matter?

Or can the patient bring a sample from home?

Freshness is key.

The text says you should examine the urine within one to two hours of collection.

If it sits around longer, the cells, red cells, white cells, they begin to hemolyse, they break down, and you might miss the diagnosis.

So you could get a false negative.

Exactly.

And on the dipstick, we're looking for leukocyte esterase, which is a sign of white blood cells, and nitrites, which certain bacteria produce.

And proteinuria.

Proteinuria tells you the kidneys are involved.

It suggests there's damage to the glomeruli, the filters.

Now looking under the microscope, the text talks about casts.

I have to admit, I always found casts confusing.

What exactly are they?

Think of casts as a fingerprint of the kidney tubules.

There are cylindrical molds, basically jello molds, of the inside of the tiny tubules in the kidney.

Protein and cells get packed together in there and form a cast that gets flushed out.

So what they're made of tells you what's happening inside the kidney.

Precisely.

If you see red cell casts, it means the red blood cells got into the urine inside the kidney, usually the glomerulus.

It proves the bleeding is intrarenal, not from the bladder or prostate.

It's a definitive sign of glomerulonephritis.

That's a great way to visualize it.

Okay, for prostatitis, the text describes something called the glass tests.

This seems complicated.

The Mears -Stehme 4 glass test.

It's the gold standard for diagnosing bacterial prostatitis.

Though you're right, it's complicated, not often done in a busy primary care clinic.

How does it work, in theory?

You collect four separate samples in sequence.

VB1 is the very first 10 millimounds of urine, which represents the urethra.

VB2 is the midstream sample, representing the bladder.

Okay, so urethra, then bladder.

Then you stop the patient, you have him lean over, and you massage the prostate to get prostatic secretions out the tip of the penis.

That's the EPS sample.

Then immediately after, you have the patient void again to collect VB3, which is the post -massage urine.

And you compare the bacteria counts in all four samples.

Right.

If the bacteria are mostly in VB1, it's urethritis.

If they're in VB2, it's cystitis.

If the bacteria count is 10 times higher in the EPS or VB3 compared to the first samples, bingo.

It's bacterial prostatitis.

You've localized the infection.

But that sounds like a lot of work for a busy clinic.

Is there a shortcut?

There is.

The text highlights an evidence -based practice box on the two -glass PPMT, the pre -massage and post -massage test.

Just two cups.

Much better.

Much better.

You get a midstream urine sample before the massage, and then a first void urine sample after the massage.

The text says it has a 96 % concordance with the four -glass test.

It's much simpler and much more practical for primary care.

Let's talk imaging.

When do we need to order a scan?

If you subscribe to Kidney Stone, the gold standard is a CT scan, specifically a non -contrast helical CT.

Why non -contrast?

I thought contrast helps you see things better.

It does for most things.

But Kidney Stones shine bright white on a CT scan.

The IV contrast used for CT scans is also bright white.

If you use contrast, you might actually hide the stone.

The contrast could obscure it.

Got it.

No contrast for stones.

And ultrasound.

When is that the right choice?

Ultrasound is great for looking at kidney size, checking for hydronephrosis, which is swelling of the kidney from a blockage.

And it's the number one test for scrotal masses.

It's excellent at telling a solid mass from a fluid -filled cyst.

In Doppler flow.

Doppler is a type of ultrasound, and this is the critical test for the acute scrotum.

We talked about torsion versus epididymitis.

Doppler looks at blood flow.

So what does it show?

In epididymitis, which is an infection, the blood flow is increased because of inflammation.

The area lights up.

In torsion, where the cord is twisted, the blood flow is absent.

It's a black hole.

That picture is what tells the surgeon whether they need to run to the OR immediately.

Okay, we have to address the elephant in the room.

PSA.

Prostate -Specific Antigen.

The text calls this controversial, and that feels like an understatement.

It is the subject of a lot of debate, for sure.

The numbers themselves are straightforward enough.

Normal is generally considered less than 4 nanograms per milliliter.

Some say less than 3 for younger men.

Anything over 10 is highly suggestive of malignancy.

But there's a gray zone between 4 and 10.

A huge gray zone.

Because BPH can raise PSA.

A urinary tract infection can raise PSA.

Prostatitis can definitely raise it.

Even recent ejaculation or a DRE can bump it up a little.

It's not specific to cancer.

It's specific to the prostate having some kind of irritation.

And what about medications?

The book mentions finasteride.

Yes, this is a key point.

Finasteride, a drug used for BPH, works by shrinking the prostate.

It also lowers the PSA level by about 50 percent.

So if a patient is on finasteride and their PSA comes back at 2 .0, you have to mentally double it.

Their true PSA is closer to 4 .0.

If you forget to do that, you could miss a rising PSA that indicates cancer.

And the straining debate.

Should we be checking this on every man over 50?

That's the million dollar question.

The USPSTF, the US Preventative Services Task Force, gives routine PSA screening a grade D recommendation.

Which means they recommend against it for most men.

They advise individualized decision making.

Why are they against it?

Because multiple large studies, particularly in Europe, show conflicting results on whether it actually saves lives.

Screening definitely catches more prostate cancer, but it also leads to massive overdiagnosis and over -treatment of slow -growing cancers that might never have harmed the patient.

But the treatments can cause harm.

Exactly.

The treatments, surgery, radiation, have very high rates of causing permanent incontinence and erectile dysfunction.

So you have to have a long conversation with the patient about the risk of screening versus the benefits.

It's not a simple blood test.

Heavy stuff.

So what does this all mean?

We've got the history, the exam, the labs.

Let's connect the dots with the differential diagnosis.

Let's walk through the main conditions one more time, really focusing on how to distinguish them.

Let's do it.

This is where it all comes together.

Infectious conditions.

How do we tell cystitis apart from pylonephritis?

Cystitis is local.

It's all about lower tract symptoms.

Dysuria, frequency, urgency.

Patient feels okay otherwise.

Their urinalysis is positive, but they don't have a fever.

Pylonephritis is systemic.

The patient is sick.

They have a high fever, chills, flank pain, CVA tenderness, and often nausea and vomiting.

You'll see casts in their urine.

Okay, prostatitis syndromes.

The text lists four types.

This can be confusing.

Let's simplify.

Type one, acute bacterial prostatitis.

This is the sick patient again.

High fever, chills, perineal pain, obstructive symptoms.

Their prostate is hot, swollen, and exquisitely tender on that gentle DRE.

And remember, don't massage.

Got it.

Type two, chronic bacterial prostatitis.

This is the patient with nagging, recurrent UTIs.

In between episodes, they might feel fine.

The prostate might feel normal or just a little boggy.

The diagnosis is made when you find the bacteria in that post -massage urine sample.

Same bugs as acute, just a lower grade smolder infection.

Type three, chronic pelvic pain syndrome or CPPS.

This seems to be the most common.

It is, by far.

It's also the most frustrating to treat.

The main criteria is pelvic or perineal pain for at least three of the last six months.

But here's the kicker.

No bacteria.

We can't find an infection.

So what causes it?

We don't always know.

It can be inflammatory, meaning we find white blood cells in the prostate fluid, or non -inflammatory, where we don't even find those.

But it hurts, and it really impacts their quality of life.

And type four, asymptomatic inflammatory prostatitis.

Exactly what it sounds like.

No symptoms at all.

We usually find it by accident when we're doing a workup for infertility or checking a high PSA.

You find white blood cells in the semen or prostate fluid, but the patient feels totally fine.

We generally don't even treat it.

Moving to the scrotum, the big one.

Epidigimitis versus torsion.

Let's do a side by side.

Epidigimitis.

The onset is usually gradual.

Over a day or two, there's often a fever.

On exam, the pain is localized to the epididymis on the back of the testicle.

You'll have a positive pain in it.

Preen sign lifting helps the pain.

And Doppler shows increased blood flow.

In young men, it's often STI -related.

Torsion.

The onset is rapid.

Boom.

Sudden, severe pain.

Often associated with nausea and vomiting.

On exam, the testicle is high -riding and may be horizontal.

You have a negative Preen sign and an absent chromastric reflex.

The scrotum doesn't pull up when you stroke the inner thigh.

And the Doppler shows no blood flow.

This is a surgical emergency.

The clock is ticking.

The clock is absolutely ticking.

You have a four to six hour window to get them to the OR and save that testicle.

And the lumps and bumps.

Hydrosil versus spermatosil.

Both are usually painless, fluid -filled masses.

The key difference is location and the transillumination test.

A hydrosil is fluid surrounding the entire testicle.

And it transilluminates brilliantly.

A spermatosil is a small cyst that sits on top of the epididymis, separate from the testicle.

And it may not light up as well.

Finally, obstructive and neoplastic.

Stones versus BPH versus cancer.

How do we sort them out?

Stones are about acute agonizing pain.

That colicky flank pain.

And are almost always associated with hematuria.

BPH is about chronic progressive obstructive symptoms.

The slow stream, the nocturia, the prostate feel symmetrically enlarged and smooth on exam.

And prostate cancer.

Prostate cancer can also cause obstructive symptoms.

But the key is the exam and the PSA.

The prostate feels stony hard or has a distinct nodule.

And the PSA is usually significantly elevated.

And don't forget bladder and kidney tumors.

Their calling card is that silent, painless hematuria.

Especially in smokers or older men.

And let's not forget our poor cyclists.

Perineal compression syndrome.

The key here is numbness without pain.

They don't have urinary symptoms.

They don't have pain.

They just have numbness in the perineum or penis after riding.

The cure is simple.

Rest.

The text says refrain from biking for three weeks and get a better, wider seat.

We have covered a massive amount of ground today.

We really have.

It's a dense chapter.

It is.

If you had to summarize the key takeaways, the absolute must -know points for the student listening right now, what would they be?

Okay, three things.

First, history is king.

The timing of hematuria and the presence of systemic signs like fever will determine your entire workup path.

Get that history right.

Okay, number two.

Second,

know your don't -miss diagnoses and the immediate action required.

Testicular torsion is a race against the clock time is tissue.

Acute prostatitis requires gentle handling.

Literally, do not massage.

And painless hematuria is cancer until proven otherwise.

When the third.

And third, use the tools.

You don't have to memorize the AUA score or the prostatitis classification from scratch.

Use the tables in your practice.

Print them out.

They're there to guide you and standardize your assessment.

That's great advice.

And my final thought for the listener involves looking for what isn't screaming at you.

We tend to focus on the patient who is writhing in pain from a kidney stone.

It's dramatic.

It's loud.

It gets all the attention.

But the stone usually passes or we can treat it.

The outcome is generally good.

Exactly.

But the 65 -year -old man who comes in for his blood pressure check and mentions almost as an afterthought, oh, yeah, I saw a little pink in the toilet water last week, but it didn't hurt.

So I ignored it.

That is the scary patient.

That's the one that keeps you up at night.

That silence, that lack of pain, is often the sign of something much more sinister growing in the bladder or the kidney.

So my challenge to you is to listen for the whispers, not just the streams.

That's a great point.

The silent symptoms are often the deadliest.

We want to thank you for diving deep with us today.

Hopefully, Chapter 18 feels a little less dense and a little more like a functional roadmap now.

Remember, an accurate and thoughtful assessment saves kidneys and it saves lives.

Thanks for listening to the Last Minute Lecture team.

We'll see you on the next Deep Dive.