diagnostic criteria for diabetes mellitus the criteria for the diagnosis of diabetes are shown in table 2.three way to diagnose diabetes are possible, and each, in the absence of unequivocal hyperglycemia,must be confirmed,on a subsequent day,by any one of the three methods given in Table 2. The use of the hemoglobin A1C for the diagnosis of diabetes is not recommended at this time.diagnosis of GDMThe criteria for abnormal glucose tolerance in pregnancy are those of Carpenter and Coustan (3). Recommedations from the American Diabetes Association's Fourth International Workshop Conference on Gestational Diasbetes Mellitus held in March 1997 support the use of Carpenter/Coustan diagnostic criteria as well as the alternative use of a diagnostic 75 g. 2hr. OGTT. These criteria are summarized below.Testing for gestational diabetes. Previous recommendations included screening for GDM performed in all pregnancies.However, there are certain factors that place women at lower risk for the development of glucose intolerance during pregnancy, and it is likely not costeffective to screen such patients.Pregnantwomen who fulfill all of these criteria need not be screened for GDM. This low-risk group comprises women who-are <25 years of age.-are a normal body weight-have no family history (i.e.,first-degeree relative) of diabetes-have no history of abnormal glucose metabolism-have no history of poor obstetric outcome-are not members of an ethnic/racial group with a high prevalence of diabet
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