In the Activated Partial Thromboplastin Time (APTT)-Based Screening Assay for Activated

question 49

Multiple Choice

In the activated partial thromboplastin time (APTT) -based screening assay for activated protein C resistance (APC-R) , which situation is consistent with a normal result (i.e., the patient does not have APC-R) ?

• A) Patient clot time with added APC is longer than the patient clot time without added APC.
• B) Patient clot time with added APC is shorter than patient clot time without added APC.
• C) Patient clot time with added APC is the same as patient clot time without added APC.

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