Correct Answer: D

Rationale: The correct recommendation for taking calcium carbonate antacid is to drink a glass of water after taking the medication. This practice enhances the effectiveness of the antacid by promoting its dissolution and absorption in the stomach, providing relief from symptoms of heartburn and indigestion.

Correct Answer: A

Rationale: Spironolactone, a potassium-sparing diuretic, can lead to hyperkalemia due to its mechanism of action. Hyperkalemia, or elevated potassium levels, can result in serious cardiac complications and requires immediate medical attention. Therefore, the nurse should promptly report any signs or symptoms of hyperkalemia to prevent potential adverse outcomes in the patient.

Correct Answer: C

Rationale: Lithium is typically administered orally to ensure proper absorption and distribution in the body. It is important to follow the prescribed route of administration to achieve the desired therapeutic effect and avoid potential adverse effects.

Correct Answer: C

Rationale: Liver failure impairs metabolism, leading to increased medication concentrations. To prevent adverse effects, lower dosages are required when liver function is compromised.

Correct Answer: B

Rationale: Pyridoxine is administered with Isoniazid to prevent peripheral neuropathy, a common adverse effect of the drug. It is essential to provide this supplement to the client to minimize the risk of developing this adverse effect.