Severe hypoglycemia with confusion, seizure, or loss of consciousness — treat and report immediately.
Before you read
Test yourself first: 5 questions
Question 1 of 5
A client with type 2 diabetes is prescribed glipizide, a sulfonylurea. Which adverse effect should the nurse teach the client to monitor for?
Answer: A. Sulfonylureas such as glipizide stimulate the pancreas to release insulin, so the primary risk is hypoglycemia, especially if a meal is skipped or delayed. Clients should eat regular meals and recognize hypoglycemic symptoms. Unlike metformin, sulfonylureas do not commonly cause lactic acidosis, and they tend to cause weight gain rather than loss.
Question 2 of 5
A client takes glipizide, a sulfonylurea, for type 2 diabetes. Which adverse effect should the nurse teach the client to watch for?
Answer: A. Sulfonylureas such as glipizide stimulate the pancreas to secrete insulin, so the main risk is hypoglycemia, especially if a meal is skipped or delayed. The client should recognize and treat early signs such as shakiness, sweating, and confusion, and avoid alcohol, which intensifies the effect.
Question 3 of 5
A client with type 2 diabetes is started on a sulfonylurea and asks about alcohol. Which response by the nurse is accurate?
Answer: B. Alcohol can cause hypoglycemia in clients on sulfonylureas and may produce a disulfiram-like reaction (flushing, nausea, palpitations) with some sulfonylureas. The client should limit alcohol and never drink on an empty stomach. Alcohol is not safe in unlimited amounts and does not protect against low blood sugar.
Question 4 of 5
A client taking an oral hypoglycemic (sulfonylurea, e.g., glipizide) is at risk for:
Answer: B. Sulfonylureas stimulate insulin release and can cause hypoglycemia, especially if meals are skipped or alcohol is used. Teach to eat regularly and recognize low-glucose symptoms.
Question 5 of 5
A nurse is caring for a client taking glipizide. Which finding is the most important to report to the provider?
Answer: B. Glipizide is a sulfonylurea that stimulates insulin release and can cause hypoglycemia, especially if a meal is skipped. Diaphoresis, tremor, and a blood glucose of 55 mg/dL indicate hypoglycemia, the priority adverse effect requiring intervention. A glucose of 130 mg/dL, mild nausea, and normal vital signs are not urgent.
Keep the streak going with more questions like these, each with a full rationale.
What is glipizide (sulfonylurea)?
Because it forces insulin secretion, its biggest danger is hypoglycemia, especially if a meal is skipped. It is used for type 2 diabetes only, since it requires functioning beta cells.
Key points to remember
- Mechanism: stimulates beta cells of the pancreas to secrete more insulin, so it requires a functioning pancreas (type 2 diabetes only).
- Hypoglycemia is the major adverse effect, more likely if the patient skips meals, exercises heavily, or drinks alcohol.
- Take 30 minutes before breakfast (before the first main meal) for best glucose control.
- Combining sulfonylureas with alcohol can cause a disulfiram-like reaction (flushing, nausea, palpitations).
- Sulfonylureas can cause weight gain, unlike metformin and GLP-1 agonists.
Nursing priorities
- Monitor blood glucose and assess for hypoglycemia signs (shakiness, sweating, confusion, tachycardia).
- Administer 30 minutes before the morning meal and confirm the patient will eat.
- Teach the patient to carry a fast-acting sugar source (glucose tabs, juice) at all times.
- Assess renal and hepatic function, since impairment increases hypoglycemia risk.
Labs & values
Patient teaching
- Take the dose 30 minutes before breakfast and do not skip meals.
- Recognize and treat hypoglycemia early with 15 g fast-acting carbohydrate (rule of 15).
- Avoid alcohol to prevent hypoglycemia and a disulfiram-like reaction.
- Wear a medical alert ID and check blood sugar as directed.
- Limit sun exposure and use sunscreen because of photosensitivity.
Red flags: report now
- Severe hypoglycemia with confusion, seizure, or loss of consciousness — treat and report immediately.
- Never give to a patient who is NPO or skipping meals without holding the dose and notifying the provider.
- Disulfiram-like reaction after alcohol — report flushing, vomiting, and palpitations.
References
Clinical references for this topic
