Heparin-induced thrombocytopenia screen

Alternative names, keywords

HIT

Samples required

Trisodium citrate blood (blue cap, 3.5 mL tube) taken with minimal stasis, filled to the line (preferred sample). Smaller tubes are available for paediatric samples.

Samples should be processed in the laboratory within 2 hours of venepuncture.

A positive result may necessitate a reflex test requiring a ● clotted blood (gold cap, 5mL tube) to be sent for a HIT inhibitor sendaway assay. The laboratory will request this reflex sample if required.

Test indications

Referred by Haematology Department by agreement of consultant haematologist.

Please contact Coagulation department on ext. 64306 (RSCH) or ext. 68201 (PRH), or on call biomedical scientist in Haematology if out of hours, before sending sample.

Test information

Screening test performed locally.

Reference range

Interpretive report

Turnaround time

Screening test available within 2 hours.

Enquiries

Haematology (Coagulation)