Which of the following is the most appropriate reflex test based on the following laboratory data? PT: normal
APTT: prolonged
Factor VIII: C assay:

Question

Which of the following is the most appropriate reflex test based on the following laboratory data? PT: normal
APTT: prolonged
Factor VIII: C assay: <1%
A) DRVVT
B) Bethesda titer
C) Factor IX assay
D) Mixing studies

Quizplus · Accepted Answer

The Bethesda titer is the most appropriate reflex test when Factor VIII:C assay is <1%, indicating severe Hemophilia A. This test quantifies the inhibitor level against Factor VIII, crucial for managing and treating the condition.

Which of the Following Is the Most Appropriate Reflex Test