Return to Test Directory
G6PD SCREEN (8000100308)
Test Mnemonic:


Specimen Requirements:

EDTA (Lavender top tube) or Heparin (Green top tube), or ACD  accepted. 


EDTA (Lavender top tube) or Heparin (Green top tube), or ACD  accepted. 

Minimum Volume:

+/-10% of stated manufacturer capacity.


Sample should be stored/transported refrigerated at 2-8°C.

Specimen Preparation:

Freezing of blood is not recommended.


Red cell G-6-PD is stable in whole blood for one week when refrigerated at 2-8°C.

Causes for Rejection:

Clotted, hemolyzed, collected in wrong tube, improperly stored and/or transported, identification error.

Reference Range:

Normal = normal G6PD activity; no evidence of deficiency. 

Turnaround Time:

5 days. Testing performed two days per week. Specimens submitted after 9am on testing days will be analyzed with the next scheduled batch.


Spot Fluorescence using modification of Beutler revised method.


Samples are accepted 24 hours per day at Sample Management, CSW 7.412.


G6PD Screening Test

Patient Preparation :

If patient is to receive RBC transfusion, collect before transfusion.

CPT 4 Code:




When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
Return to Test Directory