Which data warrants the most immediate intervention by the nurse for a client with diabetes insipidus (DI)? Reference Range: Sodium [136 to 145 mEq/L (136 to 145 mmol/L)].
Dry skin with inelastic turgor.
Apical rate of 110 beats/minute.
Serum sodium of 185 mEq/L (185 mmol/L).
Polyuria and excessive thirst.
The Correct Answer is C
Choice A reason: Dry skin and inelastic turgor reflect dehydration in DI from antidiuretic hormone deficiency, causing water loss. This is less urgent than hypernatremia (185 mEq/L), which dehydrates brain cells, risking seizures or coma, requiring immediate fluid correction to prevent neurological damage in this critical condition.
Choice B reason: Tachycardia (110 beats/minute) compensates for hypovolemia in DI, where water loss reduces preload, triggering sympathetic activation. This is less critical than hypernatremia (185 mEq/L), which causes cerebral dehydration, necessitating urgent hypotonic fluids to prevent neurological complications, making heart rate secondary.
Choice C reason: Serum sodium of 185 mEq/L indicates severe hypernatremia in DI, where water loss concentrates sodium, dehydrating neurons and risking seizures or coma. Immediate IV hypotonic fluids (e.g., 5% dextrose) correct osmolarity, preventing life-threatening cerebral complications, addressing the urgent pathophysiological crisis in DI.
Choice D reason: Polyuria and thirst are hallmark DI symptoms from water loss but expected and less urgent than hypernatremia (185 mEq/L), which threatens neurological function via osmotic brain injury. Correcting sodium is critical to prevent seizures, making these symptoms secondary to urgent electrolyte management.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Influenza immunization is unlikely to cause eczema flare-ups, as it targets systemic immunity, not skin allergens. A new dog’s dander is a common trigger, making pet exposure more relevant, per dermatological assessment and eczema management protocols in nursing care.
Choice B reason: Corticosteroid cream treats eczema, reducing flare-ups, not causing them. A new dog’s dander is a likely allergen triggering symptoms. Cream use is therapeutic, per dermatological treatment and eczema exacerbation assessment standards in nursing practice during home visits.
Choice C reason: A grandson’s new pet dog introduces allergens like dander, a common eczema trigger, explaining the recent flare-up. Identifying environmental exposures is critical for pinpointing causes, guiding avoidance strategies, per eczema management and dermatological assessment protocols in nursing care.
Choice D reason: A friend with eczema is unlikely to trigger flare-ups, as eczema is not contagious. A new dog’s dander is a more probable allergen. Social contact is less relevant, per dermatological assessment and eczema trigger identification standards in nursing practice.
Correct Answer is A
Explanation
Choice A reason: Crackles in bilateral lower lobes indicate pulmonary edema in heart failure, where reduced cardiac output causes fluid backup into alveoli, impairing gas exchange and causing dyspnea. This life-threatening emergency requires immediate diuretics or oxygen to reduce preload, preventing respiratory failure or hypoxia, prioritizing intervention.
Choice B reason: A heart rate of 92 beats/minute is normal and not urgent in heart failure, where dyspnea and fatigue suggest fluid overload. Crackles indicate pulmonary edema, a critical issue compromising oxygenation, necessitating immediate action to restore respiratory function, making heart rate less concerning.
Choice C reason: Blood pressure of 138/86 mm Hg is mildly elevated but not critical in heart failure. Crackles signal pulmonary edema, where fluid in alveoli impairs gas exchange, risking hypoxia. This requires urgent intervention like furosemide, as respiratory compromise is more immediate than managing stable blood pressure.
Choice D reason: Peripheral edema 1+ indicates fluid retention in heart failure but is less urgent than crackles, which signify pulmonary edema. Alveolar fluid causes dyspnea and hypoxia, requiring immediate diuretics. Edema is chronic, making respiratory assessment and intervention the priority to prevent acute respiratory failure.
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