Correct Answer: A

Rationale: In a protective environment for a client with an allogeneic stem cell transplant, the nurse needs to wear an N95 respirator when providing direct care to the client. This precaution is essential to protect the client, whose immune system is compromised after the transplant, from exposure to potential pathogens. Placing the client in a private room with negative-pressure airflow (choice B) is more appropriate for clients with airborne infections. Ensuring the client's room has sufficient air exchanges (choice C) is important for maintaining air quality but is not the primary precaution for protecting an immunocompromised client. Making the client wear a mask when outside the room due to construction (choice D) focuses on external factors and does not directly address the risk of infection during direct care.

Correct Answer: A

Rationale: In a protective environment for a client with an allogeneic stem cell transplant, the nurse needs to wear an N95 respirator when providing direct care to the client. This precaution is essential to protect the client, whose immune system is compromised after the transplant, from exposure to potential pathogens. Placing the client in a private room with negative-pressure airflow (choice B) is more appropriate for clients with airborne infections. Ensuring the client's room has sufficient air exchanges (choice C) is important for maintaining air quality but is not the primary precaution for protecting an immunocompromised client. Making the client wear a mask when outside the room due to construction (choice D) focuses on external factors and does not directly address the risk of infection during direct care.

Correct Answer: B

Rationale: The correct answer is B because choosing a puncture site in the center of the finger pad is not recommended for blood glucose monitoring. The recommended sites are the sides of the fingertips. Option A is correct as washing the puncture site using warm water and soap is a good practice. Option C is also correct as hanging the arm down for a minute can help increase blood flow. Option D is incorrect as a blood sugar level of 120 mg/dL may not necessarily indicate good blood sugar control and needs further interpretation.

Correct Answer: D

Rationale: The correct answer is D. In functional structures, employees are grouped in departments by specialty, with similar tasks being performed by the same group. This means that in a healthcare system with a functional structure, all nursing tasks would fall under the nursing service. Choices A, B, and C are incorrect because open communication between departments, one department having authority over another, or the level of authority of a particular department do not necessarily represent a functional structure.

Correct Answer: C

Rationale: The primary goal of patient advocacy in nursing is to advocate for patient rights. While ensuring patient safety and providing emotional support are important aspects of nursing care, the core focus of patient advocacy is to uphold and protect the rights of patients. Providing financial assistance is not typically a primary goal of patient advocacy in nursing.