The nursing instructor has been teaching about antivirals, actions, and effects. The instructor realizes that a student needs further instruction when the student makes which statement?

A. Hypocalcemia is correct because esomeprazole, a proton pump inhibitor, can lead to decreased calcium absorption, resulting in low calcium levels, which can cause muscle cramps.

B. Hyperkalemia is incorrect; while potassium levels can be affected by various medications, muscle cramps are not typically associated with high potassium levels.

C. Hypercalcemia is incorrect as it refers to elevated calcium levels, which would not cause muscle cramps and could actually lead to muscle weakness rather than cramping.

D. Hyponatremia is incorrect; low sodium levels may cause other symptoms but are not specifically linked to muscle cramps in the same way as low calcium levels are.

A. Confirming that the medication prescribed is the drug of choice for the specific microorganism is crucial in ensuring effective treatment, as the right drug will target the identified infection.

B. Teaching the client that significant adverse effects are expected and must be endured is not a supportive approach; the focus should be on managing and minimizing adverse effects rather than accepting them.

C. Administering antihistamines may not be relevant for all patients undergoing anti-infective treatment and is not a primary strategy for ensuring treatment success.

D. Monitoring for signs of arrhythmias or cardiac ischemia is not directly related to ensuring the success of anti-infective treatment; it may be necessary for certain medications but does not address the effectiveness of anti-infectives specifically.