A client with a history of diabetes mellitus is receiving tretinoin (Retin-A) for treatment of acne. Which of the following assessments might indicate an adverse effect of the drug? 1. Dyspnea 2....

A client with a history of diabetes mellitus is receiving tretinoin (Retin-A) for treatment of acne. Which of the following assessments might indicate an adverse effect of the drug?

1. Dyspnea

2. Blood glucose of 268 mg/dL

3. Blood pressure of 148/88 mm Hg

4. Diarrhea