Glucose-6-Phosphate Dehydrogenase
0080135
Ordering Recommendation
Preferred initial screening test for G6PD deficiency. For genetic testing, refer to Glucose-6-Phosphate Dehydrogenase (G6PD) 2 Mutations 0051684 for individuals of African ascent or Glucose-6-Phosphate Dehydrogenase Deficiency (G6PD) Sequencing 2007163 for individuals with other high-risk ethnic backgrounds.
Mnemonic
G6PD
Methodology
Quantitative Enzymatic
Performed
Sun-Sat
Reported
1-2 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Yellow (ACD Solution A), green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA). Enzyme most stable in acid citrate dextrose (ACD).  
Specimen Preparation
Do not freeze. Transport 3 mL whole blood. (Min: 1.5 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Hemolyzed specimens.  
Remarks
  
Stability
Ambient: 8 hours; Refrigerated: 1 week; Frozen: Unacceptable  
Reference Interval
7.0-20.5 U/g Hb  
Interpretive Data
 
Note
Patients who have recently received transfusions have normal donor cells that may mask G-6-PD deficient erythrocytes.
CPT Code(s)
82955
Components
Component Test Code*Component Chart Name
0080135Glucose-6-Phosphate Dehydrogenase
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Aliases
  • G-6-PD
  • G6PD Erythrocytes
  • RBC G6PD test