Correct Answer: D

Rationale: The correct answer is D, Varicella. Varicella (chickenpox) is a disease that requires airborne precautions to prevent its spread. Airborne precautions are necessary to prevent transmission of pathogens that remain infectious over long distances when suspended in the air. Rubella, pertussis, and influenza do not require airborne precautions. Rubella and pertussis require droplet precautions, while influenza requires droplet and contact precautions. Therefore, Varicella is the only disease in the list that necessitates airborne precautions.

Correct Answer: A

Rationale: The correct answer is A: Log out of the computer terminal before leaving. Logging out before leaving the computer terminal is crucial to ensuring patient data remains confidential and to prevent unauthorized access. Choice B is incorrect because sharing passwords compromises confidentiality. Choice C is incorrect as changing passwords regularly, although a good practice for security, is not directly related to maintaining client confidentiality. Choice D is incorrect as it does not address the immediate concern of maintaining client confidentiality through proper access to electronic medical records.

Correct Answer: C

Rationale: A respiratory rate of 8/min is a significant adverse effect of morphine that indicates respiratory depression, which requires immediate intervention to prevent further complications. The client may not be effectively ventilating, leading to hypoxia and respiratory acidosis. Option A is less concerning as being drowsy but responsive is a common side effect of morphine. Option B indicates decreased oxygen saturation, which is also a concern but not as severe as respiratory depression. Option D is important but not as critical as the potential respiratory compromise indicated by the low respiratory rate.

Correct Answer: B

Rationale: The correct answer is B: Early detection of mental illness. Secondary prevention in community mental health care focuses on identifying mental health issues at an early stage to provide timely interventions. Choice A, teaching stress-reduction techniques, is more aligned with primary prevention aimed at preventing the onset of mental health problems. Choice C, leading support groups for clients with substance use disorder, pertains more to providing specific interventions for individuals with substance use issues rather than the general focus of secondary prevention. Choice D, rehabilitation and prevention of further issues, is more related to tertiary prevention, which involves addressing existing mental health conditions and preventing complications or recurrence.

Correct Answer: C

Rationale: The correct action for the nurse to take is to withdraw 3 to 5 ml of urine from the port for an accurate culture and sensitivity test. Wiping the area around the needleless port with sterile water (Choice A) is not necessary when obtaining a urine specimen. Inserting the syringe into the needleless port at a 60-degree angle (Choice B) is incorrect as it does not align with the correct procedure for obtaining a urine specimen. Donning sterile gloves (Choice D) is a good practice but not the immediate action required for obtaining a urine specimen.