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 spinal change occurring with pregnancy alters mobility?

Correct answer: C

Rationale: The correct answer is 'Lordosis.' During pregnancy, the enlarging uterus places increased weight on the spine, causing an exaggerated inward curvature known as lordosis. This change alters mobility by shifting the center of gravity forward, leading to a compensatory change in posture. Scoliosis (choice A) is a sideways curvature of the spine, not typically associated with pregnancy. Kyphosis (choice B) is an exaggerated outward curvature of the spine, while ankylosing spondylitis (choice D) is a chronic inflammatory condition affecting the spine, neither of which are directly related to the spinal changes seen in pregnancy.

3. Which direction given to the nursing assistant is most likely to accomplish the task of getting a urine specimen delivered to the lab immediately after collection?

Correct answer: D

Rationale: Effective delegation depends on clear, concise direction that leaves no room for question or interpretation on the part of the one being delegated to. In this scenario, the most appropriate direction is to ensure the urine specimen is collected promptly and delivered to the lab immediately. Choice A is too vague and does not specify the urgency required. Choice B does not emphasize the immediate need for the specimen to be delivered. Choice C introduces unnecessary medical information that is beyond the scope of a nursing assistant and may cause confusion. Therefore, choice D is the correct answer as it provides clear instructions for immediate action without room for misunderstanding.

4. A new nurse employed at a community hospital is reading the organization's mission statement. The new nurse understands that this statement is written for which purpose?

Correct answer: A

Rationale: The correct answer is 'To outline what the organization plans to accomplish.' A mission statement expresses the purpose or reason for an organization's existence, outlining what it aims to achieve. It often includes statements of philosophy, purpose, and goals. This statement serves as a benchmark for evaluating the organization's performance. The mission statement is not meant to identify policies and procedures (Choice B) or describe employee benefits (Choice C). Choice B specifies the administrative guidelines and protocols of the organization, while Choice C pertains to the perks available to employees. Choice D is incorrect as the rules of the organization that employees must follow are usually detailed in employee handbooks or codes of conduct, not in the mission statement.

5. Which of these types of fluid output is not typically measured?

Correct answer: D

Rationale: The correct answer is 'urine.' Urine output is routinely measured to assess renal function and fluid balance. Choices A, B, and C are types of fluid output that are typically measured in a clinical setting. Chest tube drainage is monitored to evaluate drainage from the chest cavity, emesis refers to vomitus which can indicate gastrointestinal issues, and evaporative water from the respiratory tract is considered insensible loss and is not directly measured but estimated in overall fluid balance assessments.

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