Nursing Elites

1. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?

• A. serotonin
• B. cortisol
• C. alcohol
• D. narcotics

Correct answer: A

Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.

2. The healthcare professional seeks to assess the renal function of an elderly client who is about to receive a nephrotoxic medication. Which of the following labs provides the best indicator for renal function?

• A. urinalysis
• B. creatinine and blood urea nitrogen
• C. chemistry of electrolytes
• D. creatinine clearance

Correct answer: D

Rationale: In the context of an elderly client, assessing renal function before administering a nephrotoxic medication is crucial. While urinalysis and blood urea nitrogen provide valuable information on hydration status and overall health clues, they are not specific indicators of renal function. The chemistry of electrolytes may show abnormalities in renal failure, but it does not directly measure the kidneys' ability to eliminate waste. Creatinine clearance, on the other hand, is considered the best indicator for renal function in the elderly. This test accounts for decreases in lean body mass that can affect blood creatinine levels and is widely used to estimate the glomerular filtration rate, reflecting the kidneys' filtration capability. Therefore, creatinine clearance is the most appropriate lab test to assess renal function in this scenario.

3. Which of the following ethnic groups is at highest risk in the United States for pesticide-related injuries?

• A. Native American
• B. Asian-Pacific
• C. Norwegian
• D. Hispanic

Correct answer: D

Rationale: The correct answer is 'Hispanic.' Hispanic individuals in the United States are at a higher risk for pesticide-related injuries due to their representation among migrant workers in agricultural settings. This exposure to pesticides in their work environments increases their risk compared to other ethnic groups. Choice A, 'Native American,' although indigenous populations may face environmental health disparities, the higher risk in this context is among Hispanic individuals. Choice B, 'Asian-Pacific,' and Choice C, 'Norwegian,' do not have the same level of exposure to pesticides as Hispanic migrant workers, making them less susceptible to pesticide-related injuries.

4. A client with cirrhosis of the liver presents with ascites. The physician is to perform a paracentesis. For safety, the nurse should ask the client to:

• A. drink 1000 cc of fluid prior to the procedure to aid in fluid loss.
• B. eat foods low in fat.
• C. empty his bladder prior to the procedure.
• D. assume the prone position.

Correct answer: C

Rationale: When performing a paracentesis, the client must be sitting up to allow the fluid to settle in the lower abdomen. To prevent trauma to the bladder while inserting a needle to aspirate the fluid, the bladder must be empty. Choice A is incorrect as excessive fluid intake can make the procedure more difficult due to increased abdominal distension. Choice B is unrelated to the procedure of paracentesis. Choice D is incorrect as the client should be sitting up, not in the prone position, during the procedure.

5. The LPN is receiving the report on a comatose client at the start of the shift at 1500. What statement should be of most concern?

• A. The client was repositioned on his right side at 1100.
• B. The client was bathed, and the skin was assessed head-to-toe at 0900 with no abnormal findings.
• C. The client's PEG tube was changed 6 months ago.
• D. The client's indwelling urinary catheter was last changed 5 days ago.

Correct answer: D

Rationale: When caring for a comatose client, it is crucial to monitor and maintain the integrity of the indwelling urinary catheter to prevent urinary tract infections and other complications. Changing the urinary catheter less frequently than recommended increases the risk of infection. In this scenario, the most concerning issue is the prolonged duration since the last change of the indwelling urinary catheter, which poses an immediate risk to the client's health. While repositioning every 2 hours is essential to prevent skin breakdown, the most critical aspect in this case is the catheter care. Bathing and skin assessment are important for overall hygiene and skin integrity but are not as urgent as catheter care. The timing of the PEG tube change, while relevant for care planning, is not as immediate a concern as the indwelling urinary catheter status.

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