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FACTOR IX ACTIVITY

Synonym

Factor 9 - F9 - Christmas Factor - Hemophilia B Factor

Specimen Collection Requirements

Collect

Platelet-Poor Plasma, one light blue (3.2% sodium citrate) top tube

Handling

For detailed specimen collection and handling requirements, refer to Coagulation Specimen Collection Guidelines. CRITICAL FROZEN. All requests for coagulation assays should include a brief patient history and other pertinent clinical information (e.g., medications, blood products, etc.). Separate specimens must be submitted when multiple tests are ordered. For hemophillacs: note dose, date and time of last faxtor IX concentration infusion.

Preferred Volume

2.0 mL

Minimum Volume

1.0 mL

Transport

Frozen

Rejection Criteria

Serum, nonfrozen or hemolyzed specimens

Stability

Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks

Testing Information

Performed

Mon - Sat

Reported

2-4 days

Method

Electromagnetic Mechanical Clot Detection

Referral Lab

ARUP (30100)

Reference Values

Reference Values

Interpretation provided.

CPT Codes

85250

Last Updated: Tuesday, February 21, 2017 10:02:16 AM


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