Correct Answer: D

Rationale: The correct course of action for the nurse is to determine which staff members have already been fitted for particulate filter masks before changing assignments. This ensures safety and compliance with infection control protocols. Option A is incorrect as wearing a standard face mask before being fitted for a filter mask does not address compliance with droplet precautions. Option B is incorrect because the priority is to ensure all staff members have appropriate equipment before providing care. Option C is incorrect as a standard mask may not offer sufficient protection when dealing with clients under droplet precautions.

Correct Answer: A

Rationale: The patellar reflex, also called the knee-jerk reflex, is elicited by tapping the patellar tendon just below the patella. This reflex involves the quadriceps muscle and the femoral nerve. The correct answer is 'A: Knee picture' because the patellar reflex is associated with the knee joint. Choices B, C, and D are incorrect as they do not correspond to the anatomical location involved in the patellar reflex.

Correct Answer: B

Rationale: In a normal sitting position, both feet should be supported on the floor with the ankles comfortably flexed. This position helps in maintaining stability and proper alignment. Choice A is incorrect because the edge of the seat pressing against the popliteal space may cause discomfort and is not indicative of proper alignment. Choice C is incorrect as the body weight should be evenly distributed for proper alignment and comfort, not solely on the buttocks. Choice D is incorrect as the position of the arms alone does not indicate proper body alignment in the sitting position; proper arm positioning is important for comfort but not a key indicator of body alignment.

Correct Answer: A

Rationale: Discharge planning for a client with an exacerbation of heart failure should begin during the admission process. Initiating discharge planning early ensures a smooth transition and continuity of care for the client. Option B, after the client is stabilized, is not ideal because planning should start early to address potential barriers to discharge. Option C, when the client expresses readiness to go home, may be too late as discharge planning is a proactive process. Option D, just before the expected discharge date, does not allow enough time for comprehensive planning and coordination of post-discharge care needs.

Correct Answer: A

Rationale: The correct location to auscultate the pulmonary valve is the second intercostal space at the left sternal border. This area is where the pulmonary valve can best be heard due to its anatomical position. Choice B, the fifth intercostal space at the midclavicular line, is the location for auscultating the mitral valve. Choice C, the fourth intercostal space at the left sternal border, is the area for the tricuspid valve. Choice D, the fifth intercostal space at the left anterior axillary line, is the site for listening to the mitral valve as well. Therefore, option A is the correct choice for auscultating the pulmonary valve.