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G6PD, Quantitative, Blood and Red Blood Cell Count (RBC) Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.

The Purpose of a G6PD RBC Count Blood Test

Glucose-6-phosphate dehydrogenase (G6PD) is an enzyme that plays a crucial role in protecting red blood cells from oxidative stress by producing a molecule called reduced glutathione. G6PD deficiency is an inherited condition where the body does not produce enough of this enzyme, leading to vulnerability to oxidative stress. It can also raise the risk of hemolytic anemia, which is marked by symptoms such as jaundice, fatigue, and elevated heart rate. This deficiency can be triggered by certain medications, infections, or exposure to certain foods or chemicals.

Tests Included:

Glucose 6-Phosphate Dehydrogenase (G6PD), Quantitative, Blood and Red Blood Cell Count (RBC) (500)
Glucose 6-Phosphate Dehydrogenase (G6PD), Quantitative, Blood and Red Blood Cell Count (RBC) (001917)

What Does the G6PD Blood Test Measure?

The G6PD quantitative test measures the activity levels of the G6PD enzyme in red blood cells.

Who Should Take a G6PD Lab Test?

The G6PD blood test is primarily performed in people who exhibit symptoms or risk factors associated with G6PD deficiency. These risk factors may include a family history of G6PD deficiency, ancestry from regions where the condition is common, or a known sensitivity to medications or certain foods that can trigger hemolytic anemia in individuals with G6PD deficiency. This test is also recommended for newborns, as G6PD deficiency can lead to severe jaundice in infants.

G6PD Quantitative Test Preparation

The blood test for G6PD doesn’t require any special preparations before visiting the lab for your appointment.

G6PD RBC Count Blood Test Results

A normal test result is 8.6 to 18.6 units per gram of hemoglobin tested. If your levels are 10% to 60% of that range, you may have hemolytic anemia, while less than 10% of a normal level means you have a chronic G6PD deficiency.

Where Can I Get a Blood Test for G6PD Near Me?

Personalabs is your source for a wide array of general health tests that give you the power to be proactive in your healthcare choices. In our 400-plus test collection, you’ll find tests that measure common markers such as cholesterol or vitamin levels, as well as highly specialized tests, such as the G6PD lab test, that you can’t find in many other places. Here’s how easy it is to order a test from Personalabs:

Step 1: Purchase your test online and download the lab order that comes with it. (You may not need approval from your doctor to buy the test, depending on the state where you live.)

Step 2: Choose the location to make your test appointment with our easy-to-use lab finder. You have more than 4,000 Labcorp and Quest Diagnostics locations to choose from across the country for the ultimate convenience.

Step 3: Bring the test order to the lab when you go to your blood draw appointment.

Step 4: View your results report within 2 to 10 business days in your secure Personalabs account. (Turnaround times vary, so contact us if you need your results back within a certain timeframe.) If you want to know more about what your results mean, book a telehealth visit with one of our board-certified doctors for a consultation.

Make positive, informed changes in your life with fast, accurate health test results. Shop our collection of tests now.

Estimated Turn Around For Results:

2-10 Business Days

For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.

Additional information


LabCorp, Quest

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Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.


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