II. Indications (rarely indicated)

  1. Diagnosis of Diabetes Mellitus
    1. Replaced by Fasting Serum Glucose >126 mg/dl (and Hemoglobin A1C >6.5%)
    2. May be useful in Insulin Resistance

III. Protocol

  1. Administer 75 grams Glucola drink
  2. Measure Serum Glucose over 2 hour period

IV. Interpretation

  1. Positive if 2 values exceed 200 mg/dl
  2. Elevated values must include 2 hour Glucose

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Ontology: Measurement of glucose 2 hours after glucose challenge for glucose tolerance test (C0202049)

Definition (ALT) Analyzing a client/patient's blood sample to determine his or her blood glucose levels. Use DEABZ in conjunction with DEACS. For additional time, use DEACT. For a 4-hour test, use DEACU or DEACV. Service is billed per test.
Concepts Laboratory Procedure (T059)
SnomedCT 49167009
English Measurement of glucose 2 hours after glucose challenge for glucose tolerance test (procedure), Glucose tolerance test, 2 hours (procedure), Glucose tolerance test, 2 hours, Measurement of glucose 2 hours after glucose challenge for glucose tolerance test, Glucose tolerance 2-hour test each test, GTT 2-h tst ea.tst
Spanish medición de glucosa 2 horas después de la administración de glucosa para la prueba de tolerancia a la glucosa (procedimiento), prueba de tolerancia a la glucosa, 2 horas (procedimiento), prueba de tolerancia a la glucosa, 2 horas, medición de glucosa 2 horas después de la administración de glucosa para la prueba de tolerancia a la glucosa