Nursing Elites

1. A nurse is caring for a patient who requires measurement of specific gravity every 4 hours. What does this test detect?

• A. Nutritional deficit
• B. Hyperkalemia
• C. Hypercalcemia
• D. Fluid volume status

Correct answer: D

Rationale: Specific gravity is a test used to determine the concentration of solutes in the urine, reflecting the kidney's ability to concentrate urine. Changes in specific gravity can indicate fluid volume status, such as dehydration (fluid volume deficit) or overhydration (fluid volume excess). Options A, B, and C are incorrect as specific gravity does not directly detect nutritional deficits, hyperkalemia, or hypercalcemia.

2. Which condition can result from prolonged vomiting or diarrhea?

• A. Intracellular fluid
• B. Interstitial fluid
• C. Dehydration
• D. Electrolyte

Correct answer: C

Rationale: The correct answer is C: Dehydration. Prolonged vomiting or diarrhea can lead to significant fluid loss, causing dehydration. Intracellular fluid (choice A) and interstitial fluid (choice B) refer to specific compartments of body fluid and are not conditions resulting from vomiting or diarrhea. Electrolytes (choice D) are minerals that help maintain fluid balance in the body but are not the condition directly resulting from prolonged vomiting or diarrhea.

3. The nurse in the medical ICU is caring for a patient who is in respiratory acidosis due to inadequate ventilation. What diagnosis could the patient have that could cause inadequate ventilation?

• A. Endocarditis
• B. Multiple myeloma
• C. Guillain-Barr syndrome
• D. Overdose of amphetamines

Correct answer: C

Rationale:

4. Retention of electrolytes (especially sodium) in the interstitial fluid can result from:

• A. decreased aldosterone secretion.
• B. increased ADH secretion.
• C. increased aldosterone secretion.
• D. decreased ADH secretion.

Correct answer: C

Rationale: The correct answer is C: increased aldosterone secretion. Aldosterone, a hormone produced by the adrenal glands, increases sodium reabsorption in the kidneys, leading to retention of sodium and water in the interstitial fluid. Increased aldosterone secretion enhances the reabsorption of sodium, thereby increasing its retention. Choice A is incorrect because decreased aldosterone secretion would lead to less sodium reabsorption and increased excretion. Choice B is incorrect because increased ADH secretion primarily affects water reabsorption rather than sodium. Choice D is incorrect because decreased ADH secretion would lead to increased water excretion but not necessarily affect sodium retention.

5. . A medical nurse educator is reviewing a patients recent episode of metabolic acidosis with members of the nursing staff. What should the educator describe about the role of the kidneys in metabolic acidosis?

• A. The kidneys retain hydrogen ions and excrete bicarbonate ions to help restore balance.
• B. The kidneys excrete hydrogen ions and conserve bicarbonate ions to help restore balance
• C. The kidneys react rapidly to compensate for imbalances in the body
• D. The kidneys regulate the bicarbonate level in the intracellular fluid.

Correct answer: B

Rationale:

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