aka FBS · Fasting Glucose · Fasting Blood Glucose · FBG · LOINC:1558-6
Measures blood glucose after 8-12 hours of fasting. Primary test for diagnosing diabetes.
Fast for 8-12 hours (water allowed). Take test in the morning. Avoid alcohol the night before. Continue regular medications unless advised otherwise.
Normal ranges may vary between labs. Always consult your doctor for interpretation.