Fast Five Quiz: Type 2 Diabetes Presentation and Diagnosis

Romesh Khardori, MD, PhD; Anne L. Peters, MD

December 20, 2022

The Dawn phenomenon refers to the abnormal "nocturnal nadir" to early morning increase in blood glucose level (> 20 mg/dL) that affects > 50% of patients with type 2 diabetes. Patients with type 2 diabetes who experience the dawn phenomenon have both higher A1c and 24-hour glucose levels compared with patients without type 2 diabetes.

The Somogyi effect (also called Somogyi phenomenon or rebound hyperglycemia) refers to hypoglycemia that occurs during the nighttime hours as a result of excess exogenous insulin (eg, from inadvertent or ill-timed insulin administration or missed meals). The Somogyi effect, which is more common in patients with type 1 diabetes than in patients with type 2 diabetes, remains highly controversial in clinical practice because of studies refuting nocturnal hypoglycemia as a cause of morning or daytime hyperglycemia.

Learn more about the clinical presentation of type 2 diabetes.

1 2 3 4 5 6

Next Section

Any views expressed above are the author's own and do not necessarily reflect the views of WebMD or Medscape.

Cite this: Romesh Khardori, Anne L. Peters. Fast Five Quiz: Type 2 Diabetes Presentation and Diagnosis - Medscape - Dec 20, 2022.

Comments

Commenting is limited to medical professionals. To comment please Log-in.

Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.