Correct Answer: C

Rationale: Enoxaparin is administered subcutaneously, typically in the abdomen to ensure proper absorption. Massaging the injection site should be avoided to prevent bruising or bleeding under the skin.

Correct Answer: B

Rationale: The correct instruction for a client using nitroglycerin transdermal patches is to remove the patch every night before bedtime. This is essential to prevent tolerance to the medication's effects. Continuous exposure to nitroglycerin can lead to the body becoming less responsive to its therapeutic effects over time, making it less effective in managing the condition it is prescribed for.

Correct Answer: A

Rationale: Warfarin is classified as an anticoagulant, which means its primary function is to prevent the formation of blood clots. By inhibiting the synthesis of certain clotting factors in the liver, warfarin reduces the blood's ability to clot, making it an important medication in preventing conditions like strokes and deep vein thrombosis.

Correct Answer: B

Rationale: The priority action when caring for a client with a wound infection is to obtain a wound specimen for culture before initiating antibiotic therapy. This step is crucial to identify the specific microorganism causing the infection, allowing for targeted antibiotic treatment. Reviewing WBC laboratory findings and applying a wound dressing are important steps but come after obtaining a wound specimen for culture to guide appropriate antibiotic therapy.

Correct Answer: A

Rationale: Alendronate should be taken with a full glass of water after getting up in the morning to reduce the risk of esophageal irritation. Remaining upright for at least 30 minutes after ingestion is essential to prevent esophageal irritation and ensure proper absorption of the medication.