FACTOR XI ACTIVITY

Mnemonic

FAC11

Synonym

Plasma Thromboplasma Antecedent

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.

Preferred Volume

2.0 mL

Minimum Volume

1.0 mL

Transport

Frozen

Rejection Criteria

Serum, nonfrozen or hemolyzed specimens

Stability

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

Testing Information

Performed

Mon - Sat

Reported

2-4 days

Method

Electromagnetic Mechanical Clot Detection

Referral Lab

ARUP (30110)

Reference Values

Reference Values

Interpretation provided.

CPT Codes

85270

Last Updated: Thursday, January 5, 2017 03:42:11 AM