A Prolonged PTT Is Corrected When Mixed with Normal Plasma

question 17

Multiple Choice

A prolonged PTT is corrected when mixed with normal plasma and tested immediately and after a 2-hour incubation. Which test (or tests) should be performed next?

• A) Bethesda titer
• B) High phospholipid PTT
• C) Anti-Xa assay
• D) Factor VIII and IX assays

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Definitions:

Holy Roman Empire

A multi-ethnic complex of territories in central Europe that developed during the Early Middle Ages and continued until its dissolution in 1806.

Notre-Dame

A world-renowned Gothic cathedral in Paris, famous for its architectural beauty, flying buttresses, and significant role in French culture and history.

Saint-Denis

A suburb of Paris, France, known historically for the Basilica of Saint-Denis, a burial site of French royalty and a pioneering masterpiece of Gothic architecture.

Gothic Style

An architectural style that flourished in Europe during the High and Late Middle Ages, characterized by features such as pointed arches, ribbed vaults, and flying buttresses, emphasizing verticality and light.