The nurse should monitor for which of the following findings as an adverse effect of the medication?

The correct answer is B: Hypotension. Hypotension is a common adverse effect of many medications, especially those that affect blood pressure or circulation. The nurse should monitor for signs such as dizziness, lightheadedness, or low blood pressure readings. Polyuria (A) is excessive urination, not typically an adverse effect of medications. Bilateral crackles (C) indicate fluid in the lungs, not a common adverse effect of medications. Hyperglycemia (D) is high blood sugar, often seen with certain medications like steroids or glucose-lowering drugs.