Correct Answer: A

Rationale: Arterial blood gases (ABGs) are the most appropriate laboratory test to monitor respiratory function in a client with pneumonia. ABGs provide valuable information on oxygenation status, acid-base balance, and how well the lungs are exchanging gases. This information helps in assessing the effectiveness of ventilation and oxygenation, guiding treatment decisions, and evaluating the overall respiratory status of the client.

Correct Answer: D

Rationale: When encountering a client in distress, the nurse's initial response should be to communicate with the client to assess the situation and provide support. By talking to the client and attempting to find out the reason for their distress, the nurse can offer appropriate assistance and ensure the client's well-being. This action prioritizes the client's emotional needs and helps establish a therapeutic relationship, which is essential in nursing care.

Correct Answer: D

Rationale: In this scenario, the nurse should inform the surgeon about the client's concern immediately. This is important to ensure that the correct procedure is performed on the intended leg. Communication with the surgeon is crucial to address any discrepancies in the consent form and prevent errors during the surgical procedure. Having the surgeon clarify and correct the consent form is essential to maintain patient safety and uphold the principles of informed consent.

Correct Answer: D

Rationale: Choice (D) describes thermal adaptation, which occurs 20 to 30 minutes after heat application. The body's receptors adjust to the constant heat exposure, leading to a decreased sensation of warmth. Choices (A) and (B) provide inaccurate information regarding the situation, while choice (C) is not physiologically sound and could potentially harm the client by increasing the temperature unnecessarily.

Correct Answer: B

Rationale: To evaluate the effectiveness of epoetin alfa (Epogen) in treating anemia, the nurse should monitor hemoglobin and hematocrit levels. These values indicate the oxygen-carrying capacity of the blood, which directly relates to the treatment of anemia. White blood cell count (A), platelet count (C), and blood urea nitrogen (BUN) and creatinine (D) are not specific indicators of the effectiveness of epoetin alfa in treating anemia.