A client taking clopidogrel reports the onset of diarrhea. Which nursing action should the nurse implement first?

A. Reviewing laboratory values is important but not the first step when the primary concern is diarrhea. B. Auscultating bowel sounds is helpful but does not provide immediate information about the cause of diarrhea. C. Assessing skin elasticity is relevant if dehydration is suspected, but observing the stool provides more immediate information. D. Observing the appearance of the stool can help identify if there is an infectious or inflammatory cause of diarrhea that may need further evaluation.