Laboratory Testing for Von Willebrand Factor Contains Variables That Can

question 44

Multiple Choice

Laboratory testing for von Willebrand factor contains variables that can result in difficulty in diagnosing the disease. Which of the following factors is identified as a variable that can contribute to this difficulty?

• A) Abnormal screening results
• B) Difficulty in obtaining the specimen
• C) Age of patient
• D) Standardization of the reference plasma

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