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 51-year-old client with amyotrophic lateral sclerosis (Lou Gehrig disease) is admitted to the hospital because his condition is deteriorating. The client tells the nurse that he wants a do-not-resuscitate (DNR) order. The nurse should provide the client with which information?

• A. Oral consent is not sufficient, and the client's request will be honored by all healthcare providers.
• B. Consent must be obtained from the family.
• C. The DNR request should be discussed with the healthcare provider, who will write the order.
• D. The healthcare provider makes the final decision about a DNR request.

Correct answer: C

Rationale: When a client requests a DNR order, the nurse should contact the healthcare provider so that the provider may discuss the request with the client. A DNR order should be written, not verbal, following agency and state guidelines. Therefore, the correct answer is that the DNR request should be discussed with the healthcare provider, who will write the order. Option A is incorrect as oral consent is not sufficient for a DNR order. Option B is incorrect because the client, not the family, has the authority to request a DNR order. Option D is incorrect because the healthcare provider discusses the request with the client but does not make the final decision.

4. The method of splinting is always dictated by:

• A. location of the injury and whether it is open or closed.
• B. the severity of the client's condition and the priority decision.
• C. the number of available rescuers and the type of splints.
• D. all of the above.

Correct answer: B

Rationale: The correct answer is 'the severity of the client's condition and the priority decision.' When determining the method of splinting, it is crucial to consider the severity of the client's condition and make decisions based on their priority. Choice A is incorrect because while the location of the injury and whether it is open or closed are important factors, they do not always dictate the method of splinting. Choice C is incorrect as the number of available rescuers and the type of splints may impact the execution of splinting but do not solely dictate the method. Choice D is incorrect as it suggests that all the factors mentioned dictate the method, but in reality, the severity of the client's condition and the priority decision are the primary factors.

5. Which of the following tests is commonly performed on newborns with jaundice?

• A. blood urea nitrogen
• B. magnesium
• C. bilirubin
• D. prolactin

Correct answer: C

Rationale: The correct answer is C: bilirubin. A high bilirubin level is found in newborns with hepatic immaturity, leading to jaundice. Testing bilirubin levels is crucial in diagnosing and monitoring jaundice in newborns. Choices A, B, and D (blood urea nitrogen, magnesium, and prolactin) are not commonly performed tests for evaluating jaundice in newborns. Blood urea nitrogen is a measure of kidney function, magnesium levels are usually checked in metabolic disorders, and prolactin is a hormone related to lactation, none of which are directly relevant to assessing jaundice in newborns.

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