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Test Compendium

1092: Factor XII Activity

Test Code

  • 1092

Test Synonym

  • Factor 12, Hageman Factor

Minimum Volume

  • 0.5 mL

Specimen Requirements

  • Plasma

Container

  • Transfer Tube- Frozen- Plasma

Storage

  • Frozen

Turn Around Time

  • 5 days

CPT Codes

  • 85280
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • Instructions for platelet-poor plasma: Centrifuge light blue-top for 15 minutes at approx 1500 g within 60 min collection. Using a plastic pipette, remove plasma, taking care to avoid WBS/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcl). FREEZE immediately and ship on dry ice.

Additional Information

  • FROZEN PLATELET-POOR PLASMA IN 2 TRANSFER TUBES

Specimen Stability

  • STABILITY: FROZEN 14 DAYS -20 FROZEN 1 YEAR -70