Rec­om­men­da­tions

2.7 Screen­ing for predi­a­betes and type 2 di­a­betes with an in­for­mal as­sess­ment of risk fac­tors or val­i­dat­ed tools should be con­sid­ered in asymp­tomat­ic adults.  B

2.8 Test­ing for predi­a­betes and/‍or type 2 di­a­betes in asymp­tomat­ic peo­ple should be con­sid­ered in adults of any age who are over­weight or obese (BMI ≥25  kg/m² or ≥23 kg/m² in Asian Amer­i­cans) and who have one or more ad­di­tion­al risk fac­tors for di­a­betes (Table 2.3). B

2.9 For all peo­ple, test­ing should begin at age 45 years. B

2.10 If tests are nor­mal, re­peat test­ing car­ried out at a min­i­mum of 3-year in­ter­vals is rea­son­able. C

2.11 To test for predi­a­betes and type 2 di­a­betes, fast­ing plas­ma glu­cose, 2-h plas­ma glu­cose dur­ing 75-g oral glu­cose tol­er­ance test, and A1C are equal­ly ap­pro­pri­ate. B

2.12 In pa­tients with predi­a­betes and type 2 di­a­betes, iden­tify and, if ap­pro­pri­ate, treat other car­dio­vas­cu­lar dis­ease risk fac­tors. B

2.13 Risk-‍based screen­ing for predi­a­betes and/‍or type 2 di­a­betes should be con­sid­ered after the onset of­ pu­ber­ty or after 10 years of age, whichev­er oc­curs ear­li­er, in chil­dren and ado­les­cents who are over­weight (BMI ≥85th per­centile) or obese (BMI ≥95th per­centile) and who have ad­di­tion­al risk fac­tors for di­a­betes. (See Table 2.4 for ev­i­dence grad­ing of risk fac­tors.)