Glucose-6-Phosphate Dehydrogenase, Quantitative

What this laboratory test evaluates

DetailsGlucose-6-Phosphate Dehydrogenase, Quantitative – This test measures the level of G6PD enzyme, helping to identify G6PD deficiency, the most common enzyme deficiency worldwide. It's particularly prevalent among individuals of African, Mediterranean, and Asian descent. G6PD deficiency, an X-linked genetic disorder, varies in severity and primarily affects males. Newborns may experience prolonged jaundice, while adults could face acute hemolytic anemia with symptoms like jaundice, fatigue, and dark urine. Certain illnesses, foods (like fava beans), and medications can trigger these episodes.

What patients is this test right for?This test is crucial for individuals showing symptoms of G6PD deficiency or those with a family history. It's also important for pregnant women with the deficiency, as it can affect pregnancy outcomes.

Symptoms of G6PD Deficiency:• Jaundice
• Fatigue
• Splenomegaly (enlarged spleen)
• Dark urine
What type of sample is required for this test?1 mL whole blood collected in an EDTA (lavender-top) tube.

Test ResourcesFor more information on G6PD deficiency and its management, visit the World Health Organization and American Family Physician websites.

Additional test information

This test is crucial for individuals showing symptoms of G6PD deficiency or those with a family history. It's also important for pregnant women with the deficiency, as it can affect pregnancy outcomes.

Collection and processing

• Sample type: Whole blood
• Fasting: No
• Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected

How Sunridge uses laboratory information

Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.

Before requesting this test

Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.