Chapter 6: Maintaining Fluid Balance and Meeting Nutritional Needs

Energy needs typically decrease with age due to a slower basal metabolic rate and loss of lean tissue mass, requiring the selection of nutrient-dense foods to ensure adequate intake of essential components like carbohydrates, proteins, fats, vitamins, and minerals. Specific dietary guidelines, such as MyPlate for Older Adults, promote a balanced intake of these nutrients, while professional nursing care must account for potential deficiencies, such as low B12 absorption resulting from decreased gastric acid production, or Vitamin D deficiency contributing to bone demineralization and osteoporosis. Malnutrition is highly prevalent in the geriatric population, linked to chronic illnesses, difficulties with food procurement and preparation, medications that alter taste or appetite, and social isolation. Fluid balance is also critical, as older adults have a lower percentage of total body water and a diminished thirst response, raising the risk of fluid volume deficit (dehydration) and its associated complications like delirium and urinary tract infections. Nursing assessment focuses on measuring body mass index (BMI), monitoring key laboratory values (including hemoglobin, albumin, BUN, and electrolytes), and evaluating for signs of altered physical status. Crucial nursing interventions include implementing culturally sensitive, patient-centered care, providing a social dining environment, ensuring adequate rest before meals, and managing specific issues like dysphagia (difficulty swallowing). Dysphagia, often resulting from neurological damage or frailty, requires coordinated efforts with speech and occupational therapists, strict safety protocols (such as proper upright positioning and use of thickened fluids), and continuous monitoring to minimize the serious risk of aspiration.