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abrupt increases in fasting levels of plasma glucose concentrations between 5 and 9 AM, in the absence of antecedent hypoglycemia; occurs in diabetic patients receiving insulin therapy.
Farlex Partner Medical Dictionary © Farlex 2012
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
dawn phenomenonDiabetology Early morning hyperglycemia not preceded by hypoglycemia, linked to ↑ insulin requirements in type 1 DM, possibly due to nocturnal pulses of hGH; DP also occurs in insulin-pump users receiving continuous subcutaneous insulin infusion, who are presumed to be euglycemic; DP is attributed to residual endogenous insulin or insulin-like molecules. Cf Somogyi phenomenon, Subcutaneous insulin resistance syndrome.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
dawn phe·nom·e·non(dawn fĕ-nom'ĕ-non)
Abrupt increases in fasting levels of plasma glucose concentrations between 5-9 am in the absence of antecedent hypoglycemia; occurs in diabetic patients receiving insulin therapy.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
dawn phenomenonA sharp rise in the blood sugar level in the early morning in insulin-dependent diabetics. The rise is thought to be caused by nocturnal growth hormone secretion.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005