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50 g Glucose Test

Blood Glucose 1 h Post 50 g

Measuring blood glucose levels (glycemia) 1 hour after drinking a solution containing 50 grams of glucose is used to screen for gestational (pregnancy-related) diabetes. This test is recommended among pregnant women between the 24th and 28th weeks of pregnancy or earlier if the risk is high. The test is a version of the glucose tolerance test adapted for pregnant women that has a reduced dose of sugar (50 grams rather than 75 or 100 grams), a shorter testing period (1 hour rather than 2 hours) and is more practical (no need to fast before the test).

A normal result is a glucose level below 7.8 millimoles per litre (mmol/L). For results between 7.8 and 11.0 mmol/L, a traditional 2-hour hyperglycemia test must be performed to determine the diagnosis. A glucose level above 11.1 mmol/L indicates the very likely presence of diabetes.

Term of the Week

Creatine Kinase MM (CK-MM)

CK (creatine kinase) is an enzyme (protein) found in several tissues, including muscles and the heart. Depending on the tissue, different forms of CK are present: CK-MM is primarily present in skeletal muscles, CK-MB represents 30% of CK from the heart, while CK-BB comes from the brain and smooth muscle, such as the intestinal walls. Atypical forms of CK (macro CK1 and macro CK2) can also be present. CK electrophoresis is most useful when muscular or cardiac disease does not seem to be responsible for the increased level of total CK.