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Factor VIII (F8) Inversion Analysis

Order Code: 1402

Also Known as

F8, Factor 8, FVIII

Test Information

Factor 8 (F8) inversion analysis evaluates both the intron 1 and intron 22 inversions, and is reccommended only for males with severe hemophila A, or females who have a family history of severe unknown type of hemophilia A, or females with low factor VIII levels who have no known family history of hemophilia. This assay is included in the Factor VIII (F8) severe HA Analysis-Reflex test. F8 variants other than inversions are not detected by this assay.

Sample Requirements

Amniotic Fluid, Buccal Swabs, Cultured Amniocytes, CVS, DNA, EDTA Bone Marrow, EDTA Whole Blood

Shipping Information

Room Temperature

Requested Volume

3-5 mL EDTA Whole Blood or Bone Marrow (lavender top), 3-4 Buccal Swabs, 1 ug DNA at 50 ng/uL, 7-15 mL Amniotic Fluid, 5-10 mg CVS, 2-T25 flasks cultured amniocytes or CVS (2x10^6 minimum)

Minimum/Pediatric Volume

Fetal: Call Laboratory; Parental/Patient: 2 ml

CPT Codes



Long-range PCR and gel electrophoresis

Turnaround Time

5-7 days

New York State Approval


DEX Z-Code™

Yes, visit app.dexzcodes.com


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