Hemoglobin A1c with Calculated Mean Plasma Glucose (MPG)

Test Code
MPGQ


Quest Code
8181


CPT Codes
83036

Preferred Specimen
1 mL whole blood collected in an EDTA (lavender-top) tube


Minimum Volume
0.5 mL


Transport Container
EDTA (lavender-top) tube


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 6 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Sodium fluoride/oxalate (gray-top) tube • Heparinized plasma


Methodology
Enzymatic

Setup Schedule
Nights Monday-friday


Report Available
2 days


Limitations
Hemoglobin A1c is observed to be lower in healthy pregnant women than healthy non-pregnant women. Medical conditions associated with high red blood cell turnover are associated with lower hemoglobin A1c results.


Reference Range
<5.7 % of total hemoglobin


Clinical Significance
To assist with control of blood glucose levels, the American Diabetes Association (ADA) has recommended glycated hemoglobin testing (HbA1c) twice a year for patients with stable glycemia, and quarterly for patients with poor glucose control. Interpretative ranges are based on ADA guidelines.


Performing Laboratory
Quest Diagnostics LLC
200 Forest Street, 3rd Floor, Suite B
Marlborough, MA 01752-3023




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.