Factor V Activity Assay  Email this article           Printer friendly page

Primary Name Factor V Assay
Synonym Factor V Functional Assay
Synonym Occasionally confused with the factor V Leiden mutation test
Contraction FV
UAB Procedure Number 2500290
CPT Code 85220
Specimen Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill.

Specimen Management Note time of collection and time of last treatment if applicable. Centrifuge blue-stopper tube within 1 hour of collection, separate plasma and test or quick-freeze at -70°C.
Specimen Accepted Daily including weekends
Test Performed Monday-Friday.
Available Stat? Pathologist's approval required.
Description Congenital factor V deficiency is rare and is inherited as an autosomal recessive mutation. Acquired factor V deficiency is seen in liver disease, disseminated intravascular coagulation, and due to acquired inhibitors. Factor V deficiency is associated with mild to moderate bleeding.
Reference Interval 50-150%
Critical Value None
Associated With Bleeding disorders
Associated With Liver disease
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