Correct Answer: B

Rationale: The correct nursing interventions for a patient with pneumonia include monitoring lung sounds and respiratory rate to assess the effectiveness of treatment and the patient's respiratory status. Providing fluids and rest (Choice A) can be supportive measures but are not specific nursing interventions for pneumonia. Encouraging coughing and deep breathing exercises (Choice C) can be helpful for airway clearance but may not be appropriate for all patients with pneumonia. Administering antibiotics and providing oxygen therapy (Choice D) are medical interventions rather than nursing interventions.

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: C

Rationale: To calculate the mL needed, divide the total dose by the dose per mL. In this case, 40 mg divided by 10 mg/mL equals 4 mL. Therefore, the nurse should administer 4 mL per dose. Choice A, 2 mL, is incorrect because it would only deliver 20 mg of furosemide, which is half the required dose. Choices B and D are also incorrect as they do not provide the accurate amount needed to achieve the 40 mg dosage.

Correct Answer: B

Rationale: The correct answer is B. The client with renal failure and high potassium levels requires immediate attention because hyperkalemia can lead to life-threatening cardiac complications. Administering sodium polystyrene sulfonate helps lower the potassium levels. Choice A, the client with pneumonia and a high WBC count, although important, does not present an immediate life-threatening condition. Choice C, the post-CABG client prescribed atorvastatin, and Choice D, the client with anemia and a hemoglobin level of 11g/dL prescribed epoetin alfa, do not require immediate intervention compared to managing hyperkalemia in a client with renal failure.

Correct Answer: A

Rationale: The correct answer is A. When taking ferrous sulfate, dark tarry stools can occur as a common side effect due to the iron content in the medication. This is a normal response to the medication and not a cause for concern. Choices B, C, and D are incorrect because increased bruising, reduced infections, and amber-colored urine are not expected side effects of ferrous sulfate.