Heparin Induced Thrombocytopenia Platelet Antibody

CERNER / EPIC MNEMONIC:

HIT AB

CPT CODE:

86022 (X2)

DAYS PERFORMED:

M - F Second shift (3:00 to 11:00)

TURNAROUND TIME:

Same day if received before 17:00 or next business day

CONTAINER TYPE:

Preferred- plain red top or SST

SPECIMEN REQUIREMENTS:

2 ml blood

REJECTION CRITERIA:

Heparinized blood, Hemolyzed, Lipemic, or Icteric sample

MINIMUM VOLUME:

1 ml blood

HANDLING INSTRUCTIONS:

If sample can not be delivered to the lab within 4 hours, centrifuge and separate serum or plasma from the cells. Store 2-8°C for up to 48 hours.

REFERENCE RANGE:

> 0.400 OD is positive when confirmed by heparin inhibition of > 50%.
< 50% inhibition is considered equivocal.

LIMITATIONS OF TEST:

This assay will only detect the clinically significant IgG HIT antibody. It will not detect IgA or IgM HIT antibodies

CRITICAL VALUES:

None

LAST UPDATED:

8-30-2012

TEST SYNONYM(S):Heparin Dependent Anti-platelet Antibody; Heparin Platelet Antibody, HIT