G-6-PD Quantitative
Test Mnemonic
QTG6PD
CPT Codes
- 82955 - QTY (1)
LOINC ®
32546-4
Aliases
- G6PD
- Glucose-6-Phosphatase Dehydrogenase Quant
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3 mL | Whole blood | EDTA (Lavender) | Refrigerated | Do NOT freeze. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3 mL | Whole blood | ACD A (Yellow) | Refrigerated | Enzyme most stable in acid citrate dextrose (ACD). Do NOT freeze. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 7 days |
| Ambient | 24 hours |
| Frozen | Unacceptable |
Days Performed
Mon - Fri
Turnaround Time
2 - 4 days
Methodology
| Name | Description |
|---|---|
| Quantitative Enzymatic | |
| Colorimetric, Kinetic |
Reference Range
| G-6-PD Quantitative | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| 99 | Normal | 9.8 - 15.5 | U/g Hb |
Special Info
Do NOT freeze. Grossly hemolyzed, clotted or frozen specimens are unacceptable.
Clinical Info
Preferred initial screening test for Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency. Patients who have been recently transfused have normal donor cells that may mask G6PD deficient erythrocytes.