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Heparin Assoc Ab Detection 414

Test Code
PLT HAT


Alias/See Also
PLT HAT


CPT Codes
86022

Preferred Specimen
1 mL random serum collected in a red-top tube (no gel)


Minimum Volume
1


Other Acceptable Specimens
Random plasma collected in a 3.2% sodium citrate (light blue-top) tube


Instructions
Draw one red top tube (no gel) send serum frozen


Transport Container
RED


Transport Temperature
F


Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 6 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Gross hemolysis • Lipemia • Icteric • Serum separator tube (SST®)


Methodology
Immunoassay (IA)

Setup Schedule
Set up: Daily; Report available: 1 day


Limitations
When heparin is stopped, antibody that may have been present disappears within weeks to months.


Reference Range
Heparin-Induced Platelet Antibody Negative
Patient O.D. ≤0.300 OD Units


Clinical Significance

Heparin can induce thrombocytopenia, a decreased platelet count, due to antibody stimulation. False positive results may be due to immune complexes. False negative results may be due to low titer, low avidity antibodies.



Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



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.