Correct Answer: D

Rationale: Prednisone is a corticosteroid that can cause adrenal atrophy, reducing the body's ability to withstand stress. The dosage may need to be increased before and during surgery.

Correct Answer: A

Rationale: When a client complains of pain at the IV insertion site, and there are signs of extravasation such as redness and swelling, it is crucial to notify the healthcare provider immediately. Extravasation of antineoplastic medications can cause tissue damage, pain, and necrosis if they escape into surrounding tissues. Prompt action is necessary to prevent further complications and ensure appropriate management of the situation.

Correct Answer: C

Rationale: Blurred vision is an adverse effect of methocarbamol (Robaxin) and should be reported to a health care provider.

Correct Answer: B

Rationale: The correct instruction for the nurse to include in the client's teaching plan when taking methotrexate is to report any signs of infection immediately. Methotrexate can suppress the immune system, making the client more susceptible to infections. It is important for the client to promptly report any signs of infection to receive timely medical intervention. Additionally, the client should actually take folic acid supplements to reduce side effects, take the medication on an empty stomach if tolerated, and maintain adequate fluid intake to prevent complications.

Correct Answer: B

Rationale: The correct answer is B: Calcium level. Tamoxifen may increase calcium levels, leading to hypercalcemia. Symptoms of hypercalcemia include increased urine volume, excessive thirst, nausea, vomiting, constipation, muscle weakness, and bone pain. Monitoring serum calcium levels is essential to detect and manage this potential side effect.