Final answer:
The primary focus of the nurse when assessing for side effects of cholestyramine (Questran) would be assessment of 24-hour urine output.
Step-by-step explanation:
The primary focus of the nurse when assessing for side effects of cholestyramine (Questran) would be Assessment of 24-hour urine output. Cholestyramine is a medication used to lower cholesterol levels by binding to bile acids in the intestine, which are then excreted in the feces. This medication can affect the excretion of certain substances in the body, so monitoring urine output can help identify any potential problems or side effects.