A patient with recurrent thrombosis has a prolonged PTT but no history of bleeding. The mixing study fails to correct. Which condition is most likely?

What was the principle behind the original Lee-White coagulation test?

A patient has a prolonged PT of 24 seconds with normal PTT and TT results. Which coagulation factor deficiency is most likely?

The major reagent component that initiates coagulation in the PT assay is:

Dilute Russell viper venom time (dRVVT) is routinely used to detect:

A patient’s TT is markedly prolonged, but the reptilase time is normal. Which explanation is most likely?

The historical bleeding time reference interval is approximately:

A typical thrombin time reference interval is:

The thrombin time is prolonged in afibrinogenemia.

A hematocrit greater than what percentage requires adjustment of citrate anticoagulant volume?