the nurse is teaching a client about sleep and gives background information on normal sleep patterns which of the following substances promotes sleep
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Nursing Elites

NCLEX-PN

Nclex Exam Cram Practice Questions

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

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. A nurse is preparing to administer medications to a client via a nasogastric (NG) tube. Before administering the medication, the nurse must first take which action?

Correct answer: C

Rationale: Before administering medications through an NG tube, the nurse must first check the placement of the tube to prevent aspiration. This is done by aspirating gastric contents and measuring the pH. Checking the client's apical pulse is unrelated to NG tube medication administration. Checking when the last feeding was given is important but not a priority before administering medications. Checking when the last medications were given is also not directly related to ensuring the safe administration of medications through an NG tube. Ensuring the correct placement of the tube is crucial to prevent complications such as pulmonary aspiration.

3. Which of the following statements indicates adequate dietary understanding in a client with constipation?

Correct answer: C

Rationale: The correct answer is, "I should increase my intake of apples."? This statement indicates adequate dietary understanding in a client with constipation because apples are a good source of fiber, which helps alleviate constipation. Adequate fiber intake is essential for promoting bowel regularity. Choices A and B are incorrect as decreasing fluids and activity level can worsen constipation. Insufficient fluid intake can lead to hard stools, exacerbating constipation. Decreasing activity can also slow down bowel movements. Choice D is incorrect because milk is not a high-fiber food and may not effectively address constipation. While milk can have a mild laxative effect on some individuals, it is not a primary solution for constipation, especially when compared to high-fiber foods like apples.

4. A client has been placed in isolation because he is diagnosed with a contagious illness. The nurse should be aware that:

Correct answer: A

Rationale: Isolation techniques are used to prevent or limit the spread of infection. Special handling of articles and linens soiled by any body fluid is essential. Linens should be placed in impervious bags before being removed from the client's bedside to prevent exposure of personnel and contamination of the environment. Double-bagging is required if the outside of the bag becomes contaminated. This practice ensures that potentially infectious materials are properly contained and disposed of. Choices B, C, and D are incorrect because the focus in this scenario is on proper handling and disposal of soiled linens to prevent the spread of infection, not on serving meals, psychological effects of isolation, or the use of paper trays and plastic utensils.

5. Which of the following symptoms is not indicative of autonomic dysreflexia in the client with a spinal cord injury?

Correct answer: C

Rationale: Autonomic dysreflexia is characterized by a sudden onset of symptoms due to an overactive autonomic nervous system. Hypotension is not indicative of autonomic dysreflexia; instead, hypertension is a hallmark sign. Therefore, hypotension is the correct answer. Flushed face, sudden onset of headache, and nasal congestion are classic symptoms of autonomic dysreflexia caused by a noxious stimulus below the level of the spinal cord injury. These symptoms result from the body's attempt to regulate blood pressure when the normal feedback loop is interrupted.

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