Correct Answer: C

Rationale: Enoxaparin, a medication used for preventing deep vein thrombosis, should be administered into the subcutaneous tissue, typically in the abdomen. It is important not to massage the site after injection to avoid tissue damage and ensure proper absorption of the medication.

Correct Answer: A

Rationale: The therapeutic effect of lisinopril, an ACE inhibitor, is indicated by a decrease in blood pressure. Lisinopril works by relaxing blood vessels, leading to a reduction in blood pressure. Monitoring and achieving a decrease in blood pressure is a key outcome when managing hypertension with lisinopril.

Correct Answer: C

Rationale: The correct answer is C. Taking aspirin along with Warfarin can increase the risk of bleeding. Clients should be advised to avoid medications that increase the risk of bleeding when taking Warfarin to prevent complications.

Correct Answer: C

Rationale: Lithium is primarily used to stabilize mood, especially in conditions like bipolar disorder. It helps in reducing the frequency and severity of manic episodes, making it an essential medication for mood stabilization.

Correct Answer: B

Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL.