Which type of testing is most commonly used to diagnose classic hemophilia?

Question

Quizplus · Accepted Answer

Genetic testing is not used to diagnose classic hemophilia. It is diagnosed on the basis of physical manifestations and low levels of factor VIII. Hematocrit and hemoglobin levels are not specifically diagnostic for hemophilia. X-chromosome inactivation does not occur in males. Carriers can be identified by the presence of lower-than-normal levels of factor VIII, longer-than-average PTT, and F8 gene sequencing to determine the presence or absence of the specific mutation identified within the family.

Which Type of Testing Is Most Commonly Used to Diagnose