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. The nurse teaching a client about hepatitis and its transmission should explain that one type of hepatitis does not produce a carrier state after its acute phase. Which type is it?

Correct answer: A

Rationale: The correct answer is hepatitis A. Hepatitis A does not produce a carrier state after its acute phase. It is transmitted via contaminated water or food through the oral-fecal route and is not blood-borne. Hepatitis B, choice B, can lead to a carrier state where the person remains infectious despite being asymptomatic. Hepatitis C, choice C, can also result in a chronic carrier state. Hepatitis D, choice D, is an incomplete virus that requires hepatitis B to replicate; it does not lead to a carrier state on its own.

3. During the change of shift, the oncoming nurse notes a discrepancy in the number of Percocet (Oxycodone) listed and the number present in the narcotic drawer. The nurse's first action should be to:

Correct answer: B

Rationale: The first action the nurse should take is to report the finding to the nursing supervisor and follow the chain of command. Notifying the nursing supervisor allows for immediate action within the facility to address the discrepancy. If it is found that the pharmacy is in error, then notifying the hospital pharmacist (Choice A) would be appropriate. Choices C and D, notifying the Board of Nursing and the director of nursing, are not the initial steps to take. These options may be necessary if theft is suspected or if the facility's internal response is inadequate. Therefore, they are incorrect answers.

4. The laws enacted by states to provide immunity from liability to persons who provide emergency care at an accident scene are called:

Correct answer: A

Rationale: The correct answer is Good Samaritan laws. These laws protect individuals who provide voluntary emergency care from being held liable for any unintended injury or harm that may occur during the care. Good Samaritan laws encourage individuals to assist in emergencies without fear of legal repercussions. HIPAA, on the other hand, focuses on safeguarding patient information and privacy, ensuring confidentiality. The Patient Self-Determination Act (PSDA) pertains to a patient's rights to make decisions about their medical treatment and advance directives. OBRA, enacted in the late 1980s, aims to improve the quality of care in nursing homes and enhance residents' quality of life, focusing on nursing home reform and standards, which is not directly related to immunity for emergency care providers.

5. What condition is mammography used to detect?

Correct answer: B

Rationale: Mammography is specifically used to detect tumors or abnormal growths, especially in breast tissue. It is not a tool for identifying pain, edema, or epilepsy. Therefore, the correct answer is 'tumor.' Pain is a symptom, edema is swelling, and epilepsy is a neurological disorder; none of these are conditions typically detected through mammography.

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