Pathology Handbook

Platelet Function Analysis

Synonyms

PFA, Platelet studies

Clinical Indications

Suspected platelet abnormality or suspected von Willebrand disease.

It is strongly suggested to request a Bleeding Disorder Screen in place of platelet function analysis if previous testing has not been undertaken.

Request Form 

Request via ICE

Availability

Mon - Fri 9.00 to 16.00

Specific Criteria

Patient should be bled with minimal stasis

Patient Preparation

Patient should ideally be at rest

Turnaround Time

Same day

Specimen

Fresh citrated Blood (within 2 hours of collection)

Volume

2 x 4.5 ml

Container

2 x Blue capped vacutainer tube
NOTE: TWO TUBES ARE REQUIRED

Vacutainer blue top

Collection

Clean venepuncture; sample transported to laboratory immediately after collection

Causes for Rejection

Underfilled, clotted or haemolysed samples

Reference Range

See patient test report