What is this test?
This laboratory test is performed on a blood sample to measure the levels of an enzyme called Glucose 6 Phosphate Dehydrogenase (G6PD). This helps find an inherited G6PD deficiency.
Why is this test performed?
This test is performed:
- To evaluate G6PD deficiency
- To determine the cause of hemolytic anemia
- To confirm other laboratory tests
- To monitor the efficacy of treatment.
- How to prepare for this test?
- Inform your doctor about use of prescribed and non-prescribed medicines
- Inform your doctor about any recent blood transfusion
- Inform your doctor about acute symptoms
- Avoid using Sulfa drugs and fava beans.
- What is G6PD?
Glucose 6 Phosphate Dehydrogenase is an enzyme that helps red blood cells function normally and protects them against oxidative stress. Its lack may lead to breakdown of RBCs (hemolysis).
- Which medicines can affect my test results?
Following medicines can affect your test results:
- Anti-bacterial drugs
- Anti-fungal drugs
- Diuretics
- Anticonvulsants
- What are the risk factors of G6PD deficiency?
Following conditions might increase your chances of developing this deficiency:
- Male gender
- Positive family history
- African-Americans.
- What are the risks of this test?
Collecting blood from a vein is a very easy procedure and pose only minimum risk, including:
- Bruising
- Bleeding
- Infection
- Lighyheadedness
Normal range:
5.5 – 20.5 units/gram of hemoglobin
Interpretation of test results:
Low levels: Severe deficiency.
You should get tested if you have the following symptoms:
- Fatigue
- Pale skin
- Jaundice
- Fast heartbeat
- Difficulty breathing
- Red or brown urine
- Fainting
