Correct Answer: A

Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL, which is rounded up to 0.8 mL. Therefore, the correct answer is 0.8 mL.

Correct Answer: C

Rationale: The correct answer is increased urine output. Dopamine increases cardiac output and improves renal perfusion, leading to increased urine output. This response indicates that the medication is effective in treating shock by enhancing renal function and perfusion.

Correct Answer: C

Rationale: Propranolol is a beta-adrenergic antagonist that decreases heart rate and controls tremors.

Correct Answer: A

Rationale: A persistent dry cough is a common adverse effect of Enalapril, an ACE inhibitor. Enalapril can cause a non-productive cough due to its effect on bradykinin levels. The client should be advised to report this symptom to their healthcare provider to consider alternative treatments.

Correct Answer: A

Rationale: To determine the flow rate in drops per minute (gtt/min), you can use the formula: (Volume in mL x Drop factor) / Time in minutes = Flow rate in gtt/min. In this case, it would be (100 mL x 10 gtt/mL) / 45 min = 22 gtt/min. Therefore, the healthcare professional should adjust the manual IV infusion to deliver 22 gtt/min.