Synonyms: PF4: Heparin Antibodies; Heparin: Platelet Factor 4 Complex Associated Antibodies
Computer Code: HAT
Specimen Collection: 2.7 mL blood (blue top tube) 90% full
Minimum Volume: 1.8 mL blood (blue top tube) 90% full
Handling Instructions for Offsite Areas: Maintain at room temperature. If specimen can not be transported within 2 hours, centrifuge at 3,000 rpm for 20 minutes. Using a plastic pipette, transfer plasma to plastic tube and freezer plasma. Criterias for sample rejection: Short sample l<90% full, overfilled tube, clotted sample
Reference Values: Negative
Lab Code: SDH
Requisition: SPEC H
Test Frequency: Mon-Sun, sample should be in the lab by noon, otherwise will be tested the following day.
Routine TAT: within 24 hrs
Stat TAT: same day if sample is in the lab before noon
CPT Code(s): 83516
Methodology Used:
See Addendum XVII