2-hour glucose, 75 g OGTT — lab reference
In the reference guideNormal <140; prediabetes 140-199; diabetes ≥200.
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What’s searchable?Normal <140; prediabetes 140-199; diabetes ≥200.
Normal <100; prediabetes 100-125; diabetes ≥126 on confirmatory testing unless unequivocal hyperglycemia.
Diabetes may be diagnosed at ≥200 with classic symptoms or hyperglycemic crisis.
Age and assay-specific. Ask your clinician to consider subclasses or electrophoresis when indicated.
Renal threshold, SGLT2 inhibitors, pregnancy, and hyperglycemia matter.
Collection completeness must be assessed.
Urine/plasma method, creatinine correction, collection timing, and assay matter.
Ask your clinician to consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
Often calculated. Ask your clinician to consider SPEP/IFE for unexplained abnormalities.
Time-specific and assay-specific.
Volume status, glucose, osmolality, and medications may alter interpretation.
Ask your clinician to read this result with concurrent glucose, kidney function, and exogenous insulin use.
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