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Order Code: 1403

Factor VIII (F8) Severe HA Analysis-Reflex

Test Information Icon
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. USA test status: This is a laboratory developed test (LDT). 
Also Known As Icon
Also Known As
  • F8
  • Factor 8
  • FVIII
  • Hemophilia
  • Hemophilia A
Test Type Icon
Test Type
Genetic Test
Sample Notes Icon
Sample Notes
EDTA Whole Blood, EDTA Bone Marrow, DNA, Buccal Swabs, Amniotic Fluid, Cultured Amniocytes, Direct or Cultured CVS
Requested Volume Icon
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 Icon
Minimum / Pediatric Volume
Fetal: Call Laboratory; Parental/Patient: 2 mL EDTA whole blood
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Shipping Information
Room Temperature or Refrigerated
CPT Codes Icon
CPT Codes
  • F8 Inv: 81403; F8 Seq: 81407
Method Icon
Method
See specific testing for methods.
Turnaround Time Icon
Turnaround Time
Inversion Analysis: 5-7 days; Sequencing: 21 days
New York State Approval Icon
New York State Approval
No
DEX Z-Code™ Icon
DEX Z-Code™
No