HEMOGLOBIN A1C

Code
400.4590
Name
HEMOGLOBIN A1C
Category
None
Department
Chemistry
Start Date
Expiration Date
Synonyms
Glycosylated Hemoglobin, HgbA1C
CPT Codes
83036
Site
Main Lab
Reference Test
ATLAS Test Code

Specimen Information

Type

Lavender, EDTA

Volume

1.0 ml

Transport Info

Refrigerated
7 day stability

Fasting Required?
False
Patient Instructions

Reference Range

4.5-6.5%

Methodology

Colorimetric

Clinical Significance

Used mainly to evaluate long-term glucose control in Type I diabetes.

The term, “glycosylated hemoglobin” refers collectively to a series of stable compounds that are formed between hemoglobins and sugars. Their concentrations are increased within RBCs of patients with diabetes mellitus. A fraction of this hemoglobin, A1c (HbA1c), is present in largest quantity in both normal and diabetic subjects.Hb A1c assay is a retrospective index of the mean focus concentration of preceding 6 to 8 weeks. It also provides a measurement of metabolic control over time, which reflects the degree of carbohydrate imbalance.Hb A1c is used mainly to evaluate long-term glucose control in Type I diabetes.

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