JoyShine Medical

Gestational Diabetes 100g 3-hour OGTT (Carpenter-Coustan & NDDG)

Diagnoses gestational diabetes from a 100 g 3-hour oral glucose tolerance test by counting how many of the four plasma glucose values reach the selected threshold set; the two sets (Carpenter-Coustan vs NDDG) are not interchangeable — choose the one your institution uses — and this is a diagnostic-criteria aid, not a substitute for clinical judgment.