Correct Answer: D

Rationale: After surgery, key signs of infection include redness, swelling, and fever. Redness and swelling can indicate inflammation at the surgical site, while fever is a systemic response to infection. Choosing 'All of the above' (Option D) is the correct answer because all three signs are commonly associated with post-surgical infections. Options A, B, and C are incorrect as each of them individually can be a sign of infection, but considering all three together provides a more comprehensive assessment for post-operative infection.

Correct Answer: B

Rationale: The correct answer is to instruct the client not to get out of bed. Lorazepam is a sedative that can cause drowsiness and impair coordination. By instructing the client not to get out of bed, the nurse helps prevent falls or injuries that could occur due to the medication's sedative effects. Choice A is incorrect as keeping the client awake may not be necessary and could lead to unnecessary discomfort. Choice C is incorrect as encouraging the client to drink fluids is not directly related to the administration of lorazepam. Choice D is incorrect as early ambulation is not safe immediately after administering a sedative medication.

Correct Answer: B

Rationale: The correct answer is B: Potassium. Furosemide is a loop diuretic that can cause potassium depletion through increased urinary excretion. Monitoring potassium levels is crucial to prevent hypokalemia, which can lead to cardiac dysrhythmias, muscle weakness, and other serious complications. Monitoring sodium, calcium, and magnesium levels is not typically associated with furosemide therapy, making choices A, C, and D incorrect.

Correct Answer: A

Rationale: The correct answer is A: Perform Kegel exercises daily. After a radical prostatectomy, Kegel exercises are beneficial as they help strengthen the pelvic floor muscles, aiding in urinary control and recovery. Choice B is incorrect because recommending 3 hours of light exercise daily may not be suitable immediately postoperatively. Choice C is incorrect as personal hygiene, including bathing, is important for postoperative care. Choice D is incorrect because sitting for more than 2 hours does not specifically relate to the client's postoperative care needs.

Correct Answer: B

Rationale: When a client develops redness and warmth at the IV site, it is indicative of phlebitis, which is inflammation of the vein. The next step for the nurse should be to discontinue the IV and notify the healthcare provider. Applying a cold compress may provide temporary relief but does not address the underlying issue. Monitoring for infection is important, but in this case, the presence of redness and warmth suggests phlebitis, not infection. Increasing the IV flow rate can exacerbate the inflammation and should be avoided.