Correct Answer: C

Rationale: Taking ferrous sulfate with orange juice helps enhance the absorption of iron due to the ascorbic acid present in the orange juice, which aids in iron absorption. This combination can help improve the effectiveness of the medication.

Correct Answer: A

Rationale: The correct instruction for a client using a Nicotine transdermal patch is to apply the patch at the same time each day. This helps maintain consistent blood levels of nicotine throughout the treatment period, which can aid in reducing cravings for smoking. Consistency in the application time is essential for the effectiveness of the patch.

Correct Answer: A

Rationale: Metoprolol, a beta-blocker, is contraindicated in clients with bradycardia as it can further lower the heart rate, potentially leading to more serious complications. Bradycardia is defined as a heart rate below 60 beats per minute and administering metoprolol in such cases can exacerbate this condition, causing adverse effects on cardiac output.

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: 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.