Correct Answer: A

Rationale: The correct first action for the nurse to take when preparing to administer a unit of packed RBCs is to check the client's identification band. This step is crucial to ensure that the correct blood is administered to the right client, preventing any errors or adverse reactions. Verifying the provider's prescription, priming the IV tubing, and obtaining the client's vital signs are important steps in the process but should follow the initial identification check to prioritize patient safety.

Correct Answer: A

Rationale: In this scenario, the nurse should administer Bisacodyl 10 mg rectal suppository. The client's report of not having a bowel movement for 4 days indicates constipation, and Bisacodyl is a stimulant laxative that helps initiate bowel movements. Magnesium hydroxide is an antacid and osmotic laxative used for indigestion, not for constipation. Famotidine is an H2 receptor antagonist used to reduce stomach acid production and treat heartburn, not constipation. Loperamide is an antidiarrheal agent and would be contraindicated in a client experiencing constipation.

Correct Answer: D

Rationale: When a client receives an opioid medication, the nurse should first monitor for respiratory depression as it is a life-threatening adverse effect associated with opioids. This can lead to inadequate ventilation and hypoxia, requiring immediate intervention. Constipation, drowsiness, and orthostatic hypotension are also common side effects of opioids but are not as immediately life-threatening as respiratory depression.

Correct Answer: C

Rationale: Yogurt is a calcium-rich food that helps strengthen bones and should be recommended to clients with osteoporosis. Almonds, spinach, and carrots do not provide as much calcium as yogurt and are not as beneficial for individuals with osteoporosis.

Correct Answer: D

Rationale: A urine output of 20 mL/hr is below the expected range and indicates potential renal failure, requiring immediate intervention. In postoperative patients, a urine output less than 30 mL/hr suggests inadequate renal perfusion, a concern that needs prompt attention to prevent renal complications. The heart rate of 110/min, temperature of 37.4°C (99.3°F), and respiratory rate of 18/min are within normal ranges for a postoperative client and do not indicate immediate issues.