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Factor 9

Performing Laboratory

Charleston Area Medical Center, Inc.


Clot detection

Specimen Requirements

Draw 3 mL blue top (3.2% sodium citrate) Plasma.     Tubes must be a 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.


Monday-Friday  7:00 am to 2:30 pm

STAT available 7 days/week 24 hrs/day


Turn around time within 24-72 hours.

STAT - 1-2 hours.

Test Includes

Coagulation Factor 9

Functional Factor 9 Assay

Reference Ranges

50 - 150 % activity

CPT Codes