Hemoglobin A1c


Abbrev Code:GLYHB   
Order Code:LAB90Order Name:Hemoglobin A1c
Synonyms:Glycohemoglobin; Glycated Hemoglobin; Glycosylated Hemoglobin
Methodology:Turbidimetric and colorimetric
St Johns: HPLC
CPT Codes: 83036 x1
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Purple (EDTA), St Johns/St Joseph/Woodwinds - Purple (EDTA)
Causes for Rejection:Frozen specimens
Contraindications:Not useful more often than at 4-6 week intervals. Low hemoglobin may cause falsely decreased results.


Processing and Shipping

Specimen Processing:Do not centrifuge. Store in refrigerator.
Shipping Instructions:Ship refrigerated to arrive within 7 days of specimen collection.
Stability:Stability: Room temperature - 3 days; refrigerated - 7 days.
Test Performed at or Referral Lab Chemistry  (M Health Maple Grove Clinic, Range, UMMC-East Bank, Lakes, Ridges, Northland, Southdale, UMMC/UMMCH-West Bank, M Health Clinic and Surgery Center, Grand Itasca, St. John's)


Interpretive

Reference Range:
Normal Less than 5.7%
Pre-Diabetes 5.7-6.4%
Diabetes 6.5% or greater

Grand Itasca: 4.0-6.2%; DCA Vantage: 3.5-6.0%; Vista and Afinion: 0.0-5.6%
Use:Assess glycemic control in all people with diabetes mellitus.


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