in evaluating the lab work of a client in a hepatic coma which of the following lab tests is most important
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Nursing Elites

NCLEX-PN

Nclex Exam Cram Practice Questions

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

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.

2. Following an automobile accident that caused a head injury to an adult client, the nurse observes that the client sleeps for long periods of time. The nurse determines that the client has experienced injury to the:

Correct answer: A

Rationale: The hypothalamus is responsible for regulating sleep patterns among other functions. Injury to the hypothalamus can disrupt the sleep-wake cycle, leading to excessive sleepiness or changes in sleep patterns. Choices B, C, and D are incorrect as they do not primarily control sleep regulation. The thalamus is involved in relaying sensory information, the cortex is responsible for higher brain functions, and the medulla controls vital functions such as heartbeat and breathing.

3. While on the wound care team, the nurse notices that a fellow nurse opens extra colloid dressings that are often thrown away when they are not needed. What should the nurse do?

Correct answer: B

Rationale: The correct answer is to discuss with the colleague the concern about wasting supplies. By addressing this issue, the nurse can promote cost-effective care within the unit. While it may not directly impact client care, the wastage of supplies affects the unit's supply cost, making choice A incorrect. Choice C is incorrect as it assumes the charge nurse is solely responsible for the ordering process and overlooks the opportunity for direct communication between colleagues. Choice D is incorrect as it involves taking matters into one's own hands rather than addressing the issue through communication and collaboration.

4. Which of the following statements by a client indicates adequate preparation for magnetic resonance imaging?

Correct answer: A

Rationale: The correct statement is, '"I should wear earplugs during the test,"?' as MRI scanners produce loud noises requiring ear protection. Metal objects, including jewelry, are not allowed inside the MRI room due to safety concerns related to the magnetic field. Choices B, C, and D are incorrect. Choice B is wrong because metal objects, including jewelry, are not permitted in the MRI room. Choices C and D are incorrect as having a pacemaker or an artificial hip raises concerns due to the magnetic field in MRI, requiring special precautions or considerations. It is crucial for individuals with such implants to inform their healthcare provider to assess the risks and determine the appropriate course of action.

5. Which of the following nursing diagnoses might be appropriate as Parkinson's disease progresses and complications develop?

Correct answer: A

Rationale: The correct answer is 'Impaired Physical Mobility.' As Parkinson's disease progresses, clients may experience a shuffling gait and rigidity, leading to impaired physical mobility. This nursing diagnosis is relevant to address the functional limitations that may arise. 'Dysreflexia' is not typically associated with Parkinson's disease but rather with spinal cord injuries. 'Hypothermia' is a condition of abnormally low body temperature and is not a common complication of Parkinson's disease. 'Impaired Dentition' refers to dental issues and is not directly related to the progression of Parkinson's disease.

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