What is the purpose of the glycosylated hemoglobin (hemoglobin A1c) test?
a. Measuring fasting glucose levels.
b. Monitoring long-term serum glucose con-trol.
c. Detecting acute complications of diabetes.
d. Checking for hyperlipidemia.
ANS: B
Glycosylated hemoglobin refers to the permanent attachment of glucose to hemoglobin molecules and reflects the average plasma glucose exposure over the life of a red blood cell (approximately 120 days). Glycosylated hemoglobin does not measure fasting, but rather glucose control over time. Glycosylated hemoglobin does not identify complications but could provide data if the pa-tient is at risk. Glycosylated hemoglobin does not check for hyperlipidemia.
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