Hemoglobinopathy Fractionation Cascade With Reflex to a-Thalassemia *

Special Instructions:

This test is intended for adults age 20 and older. If MCV is <80 and ferritin is normal or high, testing will reflex to α-thalassemia DNA. If reflex test is performed, additional charges/CPT code(s) may apply.

This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.

Expected Turnaround Time:

2 - 5 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.