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Factor VIII (F8) Severe HA Analysis-Reflex

Order Code: 1403

Also Known as

F8, Factor 8, FVIII, Hemophilia, Hemophilia A

Disease State

Test Information

This testing is recommended for the detection of germline variants associated with severe Hemophilia A . Testing begins with F8 inversion Analysis; if this analysis is negative, F8 Sequence Analysis is performed at an additional charge. Refer to F8 Inversion Analysis and F8 Sequence Analysis for test information.

Sample Requirements

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

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

F8 Inv: 81403; F8 Seq: 81407


See specific testing for methods.

Turnaround Time

Inversion Analysis: 5-7 days; Sequencing: 21 days

New York State Approval



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