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352: Factor IX Activity, Clotting [352] Print View
Factor IX Activity CLOT DET  60 - 160  % normal 

PRIMARY
1 Plasma Citrated 1 (0.5) mL   Frozen - 14 Day(s)  
ALTERNATE

This test is useful to evaluate a prolonged aPTT. The second most common form of hemophilia is caused by deficiency of factor IX. Hemophilia B is an x-linked disorder affecting between 1 in 25,000 to 30,000 males.

Platelet-poor plasma: Centrifuge light blue-top tube for 15 minutes at
approximately 1500 g within 60 minutes of collection. Using a plastic
pipette, remove plasma, taking care to avoid the WBC/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.
Setup Schedule
Tuesday, Thursday, Saturday

Reported (Analytical Time)
Next day

CPT Code
85250

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

Notes
Reject Criteria: Thawed specimen, Received room temperature, Received refrigerated, Hemolysis, Received thawed Shipping Temperature: Frozen preferred; Room temperature unacceptable; Refrigerated unacceptable Frozen -70 degrees: 1 year






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