Final answer:
The nurse should assess the client taking glyburide (Diabeta) who is dizzy and sweaty first, as this can be a sign of hypoglycemia.
Step-by-step explanation:
From the given options, the nurse should assess the client taking glyburide (Diabeta) who is dizzy and sweaty first. Dizziness and sweating can be signs of hypoglycemia, which is a potential side effect of glyburide. Hypoglycemia can be a medical emergency and needs immediate attention. The nurse should assess this client and take appropriate actions to prevent further complications.