G6PD Test

Test red blood cell function

  • Same-day blood test appointments available
  • Reassurance regarding hereditary conditions
  • Fast efficient & easy-to-use service
Pricing £255
Type of sample taken Blood
Turnaround time 4-12 hours
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Certain conditions are caused by a deficiency of G6PD, an enzyme affecting RBC function. We have same-day appointments available, give us a call to book.

Our test for G6PD (its full name is Glucose-6-Phosphate Dehydrogenase) measures the amount of this enzyme in your red blood cells.

G6PD protects these cells from being damaged by oxidation (also frequently referred to as damage by free radicals, which are groups of atoms containing a free electron & an oxygen atom, which can destroy cells).

G6PD deficiency is one of the world’s most common enzyme deficiencies.

When should I get tested?

A deficiency of G6PD is often caused by a mutation in its gene, which is found on the X chromosome of your DNA. It is often recommended in the case of newborn jaundice, when there is no other obvious cause.

Your doctor may suggest that you have your G6PD tested if you have had haemolysis, a condition causing jaundice, anaemia, & dark urine; or you may wish to have the test to know whether or not you have the deficiency.

What does the test include

Your G6PD levels are measured using a blood test.

What to Expect

Step 1

Preparing for test

No special preparation is necessary, but if you are well-hydrated on the day of your appointment, this will facilitate the testing process.
Step 2

During the test

The test involves a quick procedure during which a doctor or nurse will take a small sample of blood from your inner arm, near the elbow, using a needle.
Step 3


We will email you with your results as soon as they are ready. If you had a consultation along with your test, you will receive a call directly from the doctor you saw. We can also deliver your results through the post, or you can pick them up from the clinic in person.