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| Primary Name |
Factor VII Assay |
| Synonym |
Factor VII functional assay |
| Synonym |
-- |
| Contraction |
FVII |
| Contraction |
-- |
| Contraction |
-- |
| UAB Procedure Number |
2500280 |
| CPT Code |
85230 |
| Specimen |
Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill. Transport at room temperature. |
| Specimen Management |
Note time of collection and time of last treatment if applicable. Centrifuge blue-stopper tube within one (1) hour of collection, separate plasma and test or quick-freeze at -70°C. |
| Specimen Accepted |
Daily including weekends |
| Times Available |
0730-1600; deliver to lab by 1300 for same-day results |
| Test Performed |
Monday through Friday |
| Available Stat? |
Pathologist's approval required. |
| Description |
Congenital factor VII deficiency is rare and is inherited as one of several autosomal recessive mutations. Acquired factor VII deficiency is caused by liver disease, vitamin K deficiency or the use of Coumadin (warfarin) therapy. Factor VII deficiency is associated with moderate to severe bleeding. The combination of a prolonged prothrombin time and normal partial thromboplastin time may indicate factor VII deficiency. |
| Reference Interval |
50-150% |
| Critical Value |
-- |
| Therapeutic Range |
-- |
| Follow-up Test |
If the functional factor VII assay indicates a deficiency, the factor VII antigen assay may be used to distinguish qualitative from quantitative disorders. |
| Associated With |
Bleeding disorders |
| Associated With |
Liver disease |
| Associated With |
Vitamin K deficiency |
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