Correct Answer: B

Rationale: The correct answer is B: 'It should be taken with meals.' Metformin should be taken with meals to minimize gastrointestinal side effects and improve absorption. Choice A is incorrect because metformin is actually associated with weight loss or weight neutrality. Choice C is incorrect as metformin is typically taken orally and not via injection. Choice D is also incorrect because metformin is not known to cause hypoglycemia as a primary side effect.

Correct Answer: A

Rationale: The correct answer is A: Third trimester of pregnancy. Salicylic acid is contraindicated during the third trimester of pregnancy due to the risk of complications for both the mother and the fetus. Thrombocytopenia (choice B) is not a contraindication to salicylic acid therapy. Coronary artery disease (choice C) is not a specific contraindication to salicylic acid therapy. However, caution should be exercised in patients with coronary artery disease due to the antiplatelet effects of salicylic acid. Adolescents with chickenpox (choice D) should not be given salicylic acid due to the risk of Reye Syndrome, a rare but serious illness.

Correct Answer: C

Rationale: The healthcare professional should verify the client's vaccination history to ensure they are due for the flu vaccine. Verifying the client's age (choice A) is important for other vaccines but not specifically for the flu vaccine. While allergy to eggs (choice B) is relevant as the flu vaccine is traditionally produced in eggs, it is not the top priority for verification. The client's weight (choice D) is not directly related to the administration of the flu vaccine.

Correct Answer: C

Rationale: The correct answer is C: 'Monitor for liver function.' Duloxetine is an antidepressant medication, not an antipsychotic, so choice A is incorrect. One of the common side effects of duloxetine is weight gain, making choice B incorrect. Choice D, stating that duloxetine has no side effects, is inaccurate as all medications have the potential for side effects. Monitoring liver function is crucial with duloxetine because it can impact liver function, emphasizing the importance of regular checks to ensure the client's safety.

Correct Answer: A

Rationale: The correct answer is to pinch the skin and inject at a 45-degree angle when administering enoxaparin. This technique helps ensure proper administration of the medication. Massaging the injection site after administering is unnecessary and could increase the risk of bleeding. Administering at a 90-degree angle is not recommended for enoxaparin injections. Rotating injection sites is important to prevent tissue damage and irritation.