|Values are valid only on day of printing.|
The percent of the patient’s hemoglobin F is very important to the clinical utility of this test. HBF / Hemoglobin F, Blood will be performed at an additional charge to determine if Hemoglobin F, Red Cell Distribution testing is warranted. If the hemoglobin F value from HBF / Hemoglobin F, Blood are normal for age or if value is <5% the HPFH / Hemoglobin F, Red Cell Distribution, Blood will not be performed. Samples with hemoglobin F (Hb F) levels >35% will be accepted but are discouraged due to decreased test specificity. For these markedly elevated Hb F levels, a hemoglobin electrophoresis profile with request for beta globin gene molecular testing for elevated Hb F levels is recommended.
Container/Tube: Lavender top (EDTA)
Specimen Volume: 3 mL
1. Patient's age and sex are required.
2. Indicate the percent of hemoglobin F detected by hemoglobin electrophoresis. If this is not indicated, we will perform HBF / Hemoglobin F, Blood.
3. Indicate the reason for testing.
4. For information on thalassemias and appropriate test ordering, see Thalassemia Tests in Special Instructions.
Forms: If not ordering electronically, complete, print, and send a Benign Hematology Test Request Form (T755) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/benign-hematology-test-request-form.pdf)
Mild reject; Gross reject
Mild OK; Gross OK
|Whole Blood EDTA||Refrigerated||7 days|