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. 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.

3. A nurse is preparing for the admission of a client with pulmonary tuberculosis. Which action reflects the use of evidence-based practice in the care of the client?

Correct answer: A

Rationale: Evidence-based practice is an approach to client care that integrates the client's preferences, clinical expertise, and the best research evidence to deliver quality care. In the case of pulmonary tuberculosis, which is transmitted through the airborne route, keeping the door to the client's room closed is crucial to prevent the spread of infection. Placing the client in a semiprivate room with a cohort client is not recommended for airborne precautions; a private room is required to prevent transmission. Fitting the client for an N95 or HEPA mask is essential for the nurse's protection when entering the room, not for the client to wear at all times. Using a surgical mask when entering the client's room is not sufficient for airborne precautions; an N95 or HEPA mask is necessary.

4. An Asian family has an elderly member with the latest stage of Alzheimer's disease. The physician has recommended placement in a long-term care facility, but the family refuses. Which of the following is an appropriate response by the nurse?

Correct answer: C

Rationale: The correct answer is, "What can I do to assist you to care for him at home?"? This response shows cultural sensitivity and respect for the family's values. In many Asian cultures, there is a strong tradition of caring for elders at home rather than in a long-term care facility. By offering assistance to the family in caring for their elderly member at home, the nurse shows understanding and support. Choices A, B, and D are incorrect because they do not acknowledge or respect the family's cultural beliefs and values regarding caring for elderly family members.

5. Under what circumstances is the legal right to confidentiality of client information waived?

Correct answer: A

Rationale: The legal right to confidentiality of client information is waived when a court system subpoenas information. This occurs when information is required for legal proceedings to occur, such as through summonses, court orders, or litigation information necessary for the court. Subpoenas are legal orders that compel the disclosure of information. The other choices do not inherently waive the legal right to confidentiality. A family member's request for health care information would typically require the client's consent or fall under specific legal exceptions. A living will dictates end-of-life care preferences but does not necessarily waive confidentiality. Lastly, the declaration of incompetence may impact decision-making capacity but does not automatically waive confidentiality.

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