Sign in →

Test Code HITA Heparin Induced Thrombocytopenia by Platelet Factor 4

Specimen Type

Serum

Container/Tube

Red top

Offsite Collection Instructions

Whole blood or serum samples might be sent
to the
laboratory.

 

Centrifugation instructions:

 

Centrifuged blood sample at >1500 x g for 10
minutes.

Aliquot removed serum into 3 tubes containing minimum
of
0.5 mL of specimen each. They may be sent refrigerated or
frozen.
 

Note: Frozen samples that have thawed in transit will be
rejected.

Turnaround Time

48 hours maximum, M-Th specimen in lab before 9:00 am,
Friday
specimen in lab by 1:00 pm, otherwise held until the next run.

Preferred Volume

1 mL

UCMC Collection Instructions

  • Specimens for heparin induced thrombocytopenia antibody
    testing
    can be collected at any time; however, testing will be
    performed
    Monday to Thursday at 9:00 am and on Friday at 1:00
    pm.  
  • Samples to be tested should be in the lab no later than
    9:00
    am
    (Monday to Thursday) and no later than 1:00 pm (Friday) in
    order
    for them to be included in the run.
  • Samples received after 9:00 am (Monday to Thursday) and
    after
    1:00 pm (Friday) will be run on the next business day.

Additional Information

Should be ordered only in the setting of:
1) a substantial drop in the platelet count with an appropriate
temporal relationship to recent heparin administration
2) re-exposure to heparin in patients previously diagnosed with
HIT.

Fee Code

30386022

Test Usage

Sensitive screening assay for heparin induced
thrombocytopenia

Specimen Minimum Volume

0.5 mL

DAY(S) AND TIME(S) PERFORMED

Collect 24/7. Test performed M-Th sample in lab by 9:00 am.
Friday by 1:00 pm, otherwise sample held until the next run.

STAT DAY(S) AND TIME(S) PERFORMED

Not Available

CPT

86022

Method Name

ELISA

Reference Values

<0.400 OD