A client reports confusion and blurred vision after receiving a dose of glipizide. Which action should the nurse implement?

Rationale: A. Measure the client's vital signs: Obtaining vital signs provides general information about the client’s condition. However, it does not determine if the client’s confusion and blurred vision are related to a hypoglycemic episode, which is the most urgent concern after glipizide administration. B. Obtain a fingerstick blood glucose: Confusion and blurred vision are classic signs of hypoglycemia, a known adverse effect of glipizide. Checking the client’s blood glucose provides immediate, specific data to confirm or rule out hypoglycemia, which directs the next appropriate intervention. C. Perform a neurological exam: A neurological exam could help assess for other causes of confusion, such as stroke or electrolyte imbalance. While important, it does not address the urgent possibility of low blood glucose, which must be ruled out promptly before pursuing other causes. D. Administer glucagon intramuscularly: Glucagon is used when hypoglycemia is confirmed or the client is unable to take oral glucose and is unconscious or seizing. Administering glucagon without first checking the blood glucose could expose the client to unnecessary treatment and delay accurate diagnosis of the symptoms.