ADAMTS 13

Test/Investigation

ADAMTS 13

Site(s) or Laboratory offering Test/Investigation

Referral laboratory

Indications

Diagnosis of TTP

Comments/Precautions

Urgent requests should always be discussed with the duty haematology consultant before ordering

Ideal sample age for accurate results/Maximum acceptable sample age (at the time of analysis)

Within 4 hours

Sample type

Citrate x2

Turnaround times (TAT) Urgent/Routine/GP or OPD

Same day for urgent samples if agreed with the referral laboratory on case-to-case basis; otherwise run in weekly batches