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Factor 7

Performing Laboratory

Charleston Area Medical Center, Inc.


Clot detection

Specimen Requirements

Collect 3 mL plasma in blue top (3.2% sodium citrate).   Tubes must be full draw.     Specimens must be spun two times to ensure plasma is platelet poor.   Specimens are stable at room temperature for 4 hours.   Platelet-free plasma may be frozen in plastic tubes for 2 weeks.



Turn around time - 48-72 hours


Monday - Friday  7 am to 2:30 pm.

Test Includes

Coagulation Factor 7

Functional Factor 7

Reference Ranges

50 - 150 % activity

CPT Codes