Glycosylated hemoglobin levels provide information about
a. the average blood glucose level over the previous 3 to 4 months.
b. blood glucose levels in comparison with serum hemoglobin.
c. serial glucose readings after ingestion of a concentrated glucose solution.
d. the difference between serum and urine glucose levels.
A
The glycated hemoglobin test (also known as the glycosylated hemoglobin, or HbA1C or A1C), provides information about the average amount of glucose that has been present in the patient's bloodstream over the previous 3 to 4 months. During the 120-day life span of red blood cells (erythrocytes), the hemoglobin within each cell binds to the available blood glucose through a process known as glycosylation.
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