AntiProthrombin IgG Antibody

Message
For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.


Test Code
APTIGG


Alias/See Also
73880;
Prothrombin Antibody (IgG)


CPT Codes
86849

Preferred Specimen
1 SST (speckled top) or 2 GST (gold top) tube(s)


Minimum Volume
2 Frozen Capped aliquots of at least 0.5 mL serum (polypropylene tubes recommended)


Instructions
Use standard venipuncture and disposal techniques.

SST/GST tube: Avoid hemolysis.
1. Invert a minimum of 5 times, and then allow clotting in an upright position for 30 minutes.
2. Centrifuge the SST/GST for at 3000 rpm for 10 minutes.
3. Spun SST/GST tube remains at refrigerated temperature (2-8 degrees C) for transport up to 72 hours.
4. Serum must be removed from original SST/GST tube and frozen at <-20 degrees C in plastic polypropylene aliquot tubes within 72 hours of collection. Refer to the Minimum Volume section above for the number of aliquots required per test.


Transport Container
SST (speckled top) tube or GST (gold top) tube
    OR
Frozen- Capped aliquots of at least 0.5 mL serum (polypropylene tubes recommended)


Transport Temperature
Room Temperature: Unacceptable
Refrigerated: SST (speckled top) tube or GST (gold top) tube
Frozen: Capped aliquots of at least 0.5 mL serum (polypropylene tubes recommended)


Specimen Stability
Room Temperature: Unacceptable
Refrigerated: SST (speckled top) or GST (gold top) tube < 72 hours
Frozen: Capped aliquots of at least 0.5 mL serum (polypropylene tubes recommended)at <-20⁰C for < 60 days
                                                                                                                                             at <-70⁰C for 12months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample


Methodology
ELISA

Setup Schedule
Monday and Thursday
SCOAG


Report Available
1 - 4 days


Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439


Last Updated: November 19, 2021


The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.