G6PD Deficiency Test
Screen for a common inherited enzyme deficiency that affects how red blood cells respond to certain foods, medications and infections.
G6PD deficiency is a common inherited condition that can trigger red blood cell breakdown in response to certain medications, foods and infections — and a single test tells you whether you carry it.
About the G6PD Deficiency Test
Glucose-6-Phosphate Dehydrogenase (G6PD) is an enzyme that protects red blood cells from damage. When it is deficient, exposure to specific drugs, foods such as fava beans, or infections can cause the cells to break down, leading to anaemia. Screening is especially important in this region, is routinely done for newborns, and is valuable for adults who have never been tested, so that triggering exposures can be avoided.
Preparation and turnaround
A straightforward venous blood sample is taken with no fasting required. The appointment takes just a few minutes and results are typically available within one to two working days. If deficiency is confirmed, your doctor can provide a list of substances to avoid.
Frequently asked questions
Why is G6PD screening important?
Knowing your status lets you avoid medications and foods that could trigger red cell breakdown, preventing episodes of anaemia.
Is G6PD deficiency inherited?
Yes. It is a genetic condition passed down through families and is more common in men. It does not change over time.
Does the test require fasting?
No. No fasting or special preparation is needed for G6PD testing.
Some tests require fasting. We'll confirm any preparation (such as fasting for 8–10 hours) when we confirm your appointment. When in doubt, ask us at booking.
Related tests
Blood Group & Rh Typing
Determine your ABO blood group and Rhesus (Rh) status — essential information for pregnancy, surgery, transfusion and personal records.
View & bookESR (Sed Rate) Test
A sensitive marker of inflammation in the body, useful for detecting and monitoring infection, autoimmune disease and other inflammatory conditions.
View & bookFull Blood Count (FBC / CBC)
A foundational blood screen that evaluates your red cells, white cells and platelets to reveal anaemia, infection, inflammation and many hidden conditions.
View & book