Insulin is a medication that is given parenterally because:

Choice A reason: Water isn’t an electrolyte; diuretics primarily deplete potassium levels. This misidentifies the focus, per nursing pharmacology. It’s a universal error, distinctly irrelevant to electrolyte monitoring in diuretic therapy.

Choice B reason: Diuretics like furosemide often cause potassium loss, risking arrhythmias. Monitoring is critical, per nursing standards. It’s universally recognized, distinctly essential for safe management of diuretic effects.

Choice C reason: Magnesium can shift, but potassium is the primary concern with diuretics. This is secondary, per nursing pharmacology. It’s universally distinct, less critical than potassium in routine monitoring.

Choice D reason: Calcium isn’t typically depleted by diuretics; potassium is key. This errors in priority, per nursing standards. It’s universally distinct, missing the main electrolyte risk in diuretic use.

Choice A reason: Anxiety uses minor tranquilizers; antipsychotics target psychosis instead. This errors per nursing pharmacology. It’s universally distinct, off-purpose entirely.

Choice B reason: Tension isn’t the focus; antipsychotics manage psychotic symptoms. This choice misaligns with nursing standards. It’s universally distinct, not the goal.

Choice C reason: Antipsychotics treat psychotic disorders like schizophrenia effectively. This fits nursing pharmacology standards. It’s universally applied, distinctly accurate for use.

Choice D reason: Depression needs antidepressants; antipsychotics address psychosis primarily. This errors per nursing standards. It’s universally distinct, wrong condition.