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Lab Test Dictionary

Factor VIII Inhibitor (1137)


Chromogenic Bethesda Titer


Factor 8; F8'; AHF; Anti-Hemophili Factor; Emicizumab; FVIII

Specimen Type


Performing Lab

Versiti Wisconsin

Epic ID

Other Reference Test

Standard TAT

7 Days

Collection Information

Specimen Required

(one) 1.8 mL or (one) 2.7 mL Blood

Container Type

Light Blue (Sodium Citrate)

Processing Information - Lab Use Only

Transport Temperature


Test Volume Required

1.5 mL Platelet-Poor Plasma

Minimum Test Volume

1 mL Platelet-Poor Plasma

Processing Instructions

Complete a Versiti Wisconsin Hemostasis requisition and submit with specimen frozen Monday-Friday.

CPT Codes