G6pd (glucose 6 phosphate dehydrogenase)

This is an important test used to diagnose G6PD deficiency as the cause of haemolytic disorders.

Venous blood
1 tests included
5 days turnaround



About G6pd (glucose 6 phosphate dehydrogenase)

What is glucose-6-phosphate dehydrogenase?

Glucose-6-phosphate dehydrogenase (G6PD) is an enzyme with important roles in the protection of red blood cells and the activity of the liver, adrenal glands, adipose tissue and mammary glands. The primary activity of G6PD is to maintain levels of coenzyme nicotinamide adenine dinucleotide phosphate (NADPH).

NADPH is a fundamental component of all cellular life; it is central to the Calvin cycle in photosynthetic plants and is used in the biosynthesis of lipids and nucleic acids. In humans it also protects red blood cells from oxidative damage produced during infection or as a by-product of certain medications by maintaining levels of antioxidant glutathione. Deficiency in G6PD can result in haemolysis (break down of red blood cells), particularly in response to oxidative stress from infection, medicines or foods.

Why take the test?

This test measures the amount of G6PD in the blood. It is typically used to diagnose G6PD deficiency as the cause of haemolytic disorders.


What's tested


How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.