Wallach's Interpretation of Diagnostic Tests: Pathways to Arriving at a Clinical Diagnosis (958 page)

   The Expert Committee recognizes an intermediate group of subjects whose glucose levels, although not meeting the criteria for diabetes, are nevertheless too high to be considered altogether normal. This group is defined as having FPG levels >110 mg/dL but <126 mg/dL or 2-hour values in OGTT of >140 mg/dL but <200 mg/dL.

   Interpretation

Increased In

   DM, including:

   Hemochromatosis

   Cushing syndrome (with insulin-resistant diabetes)

   Acromegaly and gigantism (with insulin-resistant diabetes in early stages, hypopituitarism later)

   Increased circulating epinephrine

   Adrenalin injection

   Pheochromocytoma

   Stress (e.g., emotion, burns, shock, anesthesia)

   Acute pancreatitis

   Chronic pancreatitis (some patients)

   Wernicke encephalopathy (vitamin B
₁
deficiency)