A Patient Sample Has Normal Platelet Aggregation Patterns for All

question 7

Multiple Choice

A patient sample has normal platelet aggregation patterns for all agonists except that no reaction occurs with ristocetin. Ristocetin agglutination is not corrected with exogenous VWF. What condition is most likely?

• A) VWD
• B) Storage pool disorder
• C) Bernard-Soulier syndrome
• D) Aspirin use

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Definitions:

Parallel Venation

A pattern of vein arrangement in leaves where veins run parallel to each other, typical of monocot plants.

Eudicot Leaves

Leaves of eudicotyledonous plants, characterized by a branched vein pattern.

Characteristic

A trait or feature that distinguishes an organism or object from another.

Insectivorous Plants

Plants that derive some or most of their nutrients by trapping and consuming insects and sometimes other small animals.