19th March 2024

A 34 year old male is admitted after a road traffic accident resulting in multiple crush

A 34 year old male is admitted after a road traffic accident resulting in multiple crush. The patient was transferred to theatre from the emergency department for urgent pelvic stabilisation. Post surgery, the patient developed an arterial thrombosis of the right lower limb despite appropriate anticoagulation. You are concerned that this may be related to heparin induced thrombocytopaenia (HIT). What blood test could you request which would be most helpful in securing this diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.