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 small amount of bubbling is seen in the water seal of a pleural drainage system when a client coughs. What should the nurse do?

Correct answer: A

Rationale: A small amount of bubbling is a normal finding in the water seal of a pleural drainage system when a client coughs. It is only a problem to find continuous, excessive bubbling in the water seal, which indicates a leak. Checking the system for leaks would be appropriate if there is continuous, excessive bubbling. Clamping the chest tube or changing the drainage system is not necessary in response to a small amount of bubbling during a cough, as this is considered a normal finding.

3. Upon admission, the client expresses a desire for an extra oxygen tank in their room due to a previous breathing issue. What is the most appropriate response?

Correct answer: D

Rationale: The appropriate response in this situation is to prioritize the availability of oxygen tanks for all patients in need. While it is understandable that the client may desire an extra tank for reassurance, the healthcare facility must ensure equitable distribution based on clinical need. Option A is incorrect because promising an always available extra tank may not be feasible and can set unrealistic expectations. Option B is not the best response as it focuses on past actions rather than addressing the current situation. Option C is not the most appropriate response at this time as the client's immediate need for an extra oxygen tank is the primary concern. Therefore, the best response is to emphasize the importance of equitable distribution of resources while acknowledging the client's request for an extra tank.

4. Why would a nurse employed at a hospital be asked by a nurse manager to review the organizational chart?

Correct answer: B

Rationale: The correct answer is 'To be familiar with the organization's line of authority.' Organizational charts provide a visual representation of the chain of command, reporting relationships, and structure within an organization. This helps employees understand who they report to, who reports to them, and the overall hierarchy. Choice A is incorrect because understanding the geographic area served is more about the organization's scope, not depicted in an organizational chart. Choice C is incorrect as it relates to the organization's reason for existence, usually found in its mission statement. Choice D is incorrect as beliefs and values are linked to the organization's culture, not typically shown in an organizational chart.

5. What is a significant point about Shigella that the nurse should acknowledge upon identifying it in a stool culture?

Correct answer: C

Rationale: Shigella is a bacteria sometimes found in stagnant water. Transmission of Shigella is typically oral-fecal, so good hand washing and the use of gloves are the best means of prevention when caring for a client with Shigella. The bacteria can be found in food and water contaminated by fecal material. Incidences of Shigella are reportable in many states. Choices A, B, and D are incorrect. While it is important for close contacts to be aware and practice good hygiene, testing is not routinely indicated. Shigella is not an airborne infection; it is transmitted through contaminated food or water. A one-way breathing apparatus is not necessary for caring for a patient with Shigella; standard precautions, including handwashing and gloves, are sufficient.

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