Chapter 51: Adult Respiratory Problems

The respiratory system serves multiple functions including gas exchange for cellular metabolism, acid-base regulation, thermoregulation, and sensory perception. The chapter establishes foundational knowledge of respiratory mechanics, distinguishing between upper airway structures and lower airway components where gas exchange occurs, and explaining how ventilation and perfusion must be appropriately matched for effective oxygenation. Diagnostic evaluation encompasses imaging techniques such as chest radiography and computed tomography, functional assessments including pulmonary function testing and arterial blood gas analysis, and direct visualization procedures like bronchoscopy. The chapter then systematically addresses major respiratory pathologies organized by etiology and mechanism. Obstructive diseases including asthma and chronic obstructive pulmonary disease represent reversible and irreversible airflow limitations requiring different therapeutic approaches and patient education strategies. Infectious respiratory conditions from bacterial pneumonia and tuberculosis to viral pathogens necessitate appropriate isolation precautions, antimicrobial therapy, and epidemiological awareness. The chapter covers pleural space disorders such as effusion and empyema that result from accumulated fluid or infection, as well as acute life-threatening conditions including pulmonary embolism and tension pneumothorax requiring immediate intervention. Traumatic chest injuries such as rib fractures and flail chest present unique challenges balancing pain control with respiratory mechanics. Additionally, occupational and environmental lung diseases highlight the importance of prevention through protective equipment and exposure assessment. Throughout the chapter, nursing interventions emphasize positioning strategies, breathing techniques, oxygen therapy titration, airway clearance, infection control measures, and patient education to optimize respiratory outcomes and prevent complications.