Nursing Elites

1. Which of the following is not a function of parathyroid hormone?

• A. moving calcium from bones to the bloodstream
• B. inhibiting renal tubular reabsorption of phosphorus
• C. promoting renal tubular reabsorption of calcium
• D. enhancing renal production of vitamin D metabolites

Correct answer: B

Rationale: The correct answer is 'inhibiting renal tubular reabsorption of phosphorus.' Parathyroid hormone actually inhibits renal tubular reabsorption of phosphorus, making this choice the opposite of its function. Parathyroid hormone functions to move calcium from bones to the bloodstream (Choice A), promote renal tubular reabsorption of calcium (Choice C), and enhance renal production of vitamin D metabolites (Choice D). Therefore, all other choices are functions of parathyroid hormone except for the inhibition of phosphorus reabsorption.

2. When evaluating the lab work of a client in hepatic coma, which of the following lab tests is most important?

• A. blood urea nitrogen
• B. serum calcium
• C. serum ammonia
• D. serum creatinine

Correct answer: C

Rationale: When a client is in hepatic coma due to liver failure, the liver cannot metabolize amino acids completely, leading to elevated ammonia levels. Increased ammonia can cause brain-tissue irritation, worsening the coma. Therefore, monitoring serum ammonia levels is crucial in assessing the severity of hepatic coma. Choices A, B, and D are less relevant in the context of hepatic coma. Blood urea nitrogen primarily assesses kidney function, serum calcium levels are not directly related to hepatic coma, and serum creatinine is more indicative of kidney function rather than liver function in this scenario.

3. A client admitted to the hospital has a do-not-resuscitate (DNR) order in his medical record. The nurse understands which information about DNR orders?

• A. The only individuals who may change the DNR order are healthcare providers
• B. The DNR order can be changed if the client's condition warrants it
• C. The DNR order does not remain fixed for the duration of the client's hospitalization
• D. The DNR order requires frequent review as specified by state or agency policy

Correct answer: D

Rationale: The correct answer is that the DNR order requires frequent review as specified by state or agency policy. If the client's condition changes, the DNR order may need to be changed. For this reason, DNR orders require frequent review as specified by state or agency policy. A DNR order may be changed at any time and does not remain in effect for the duration of the client's hospitalization. The client's request regarding DNR status is the priority. Choice A is incorrect because healthcare providers, not just immediate family members, may change the DNR order based on the client's condition. Choice B is incorrect as DNR orders can be changed if the client's condition warrants it, not remaining unchanged. Choice C is incorrect as DNR orders are not fixed for the duration of hospitalization, they can be modified based on the client's needs.

4. The nurse should teach parents of small children that the most common type of first-degree burn is:

• A. scalding from hot bath water or spills
• B. contact with hot surfaces such as stoves and fireplaces
• C. contact with flammable liquids or gases resulting in flash burns
• D. sunburn from lack of protection and overexposure

Correct answer: D

Rationale: The most common type of first-degree burn in small children is sunburn, often due to lack of protection and overexposure to the sun. This type of burn highlights the importance of educating parents about using sunscreens and ensuring children are adequately protected from the sun's harmful rays. Choices A, B, and C describe scenarios that can lead to burns but are not the most common type of first-degree burn in small children, making them incorrect.

5. The nurse receives an assignment of three clients. Which of the following should the nurse consider as the highest priority when determining which client to assess first?

• A. the client who most recently rang their call bell
• B. the client who has been waiting the longest for their call bell to be answered
• C. the client who is in the most pain
• D. the client who may have a risk for an airway obstruction

Correct answer: D

Rationale: The nurse should prioritize assessing a client with a potential airway obstruction first based on the ABCs (airway, breathing, circulation) principle. Maintaining a clear airway is crucial for oxygenation and ventilation, making it the highest priority. Choices A and B focus on call bells and waiting times, which are important but not life-threatening in comparison to airway concerns. While pain management is essential, it takes precedence after addressing immediate life-threatening issues like airway compromise.

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