Correct Answer: A

Rationale: Pulse pressure is calculated by subtracting the diastolic pressure from the systolic pressure. In this case, the systolic pressure is 150 and the diastolic pressure is 96. Therefore, the pulse pressure is 150 - 96 = 54. Pulse pressure represents the force generated by the heart with each contraction and is an important indicator of cardiovascular health.

Correct Answer: D

Rationale: Failure to wear gloves during a bed bath can potentially introduce pathogens, compromising the sterile technique necessary for respiratory isolation. Proper hand hygiene and personal protective equipment are crucial to prevent the transmission of infectious agents in such settings.

Correct Answer: A

Rationale: In this scenario, the appearance of a rash after administering penicillin, even in a patient with no known allergies, is concerning for a potential allergic reaction. The appropriate action for the nurse to take is to withhold the medication and notify the physician. This precaution is necessary to prevent further administration of a medication that may be causing an adverse reaction, as allergic reactions can range from mild to severe and require immediate intervention.

Correct Answer: C

Rationale: Sterile technique is utilized during invasive procedures to prevent the introduction of pathogens, minimizing the risk of infections. This strict approach ensures that the procedure is performed in a sterile environment, reducing the chances of contamination and subsequent complications.

Correct Answer: C

Rationale: Immobility, diaphoresis, and avoidance of deep breathing or coughing are common signs of pain.