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Platelet Function Assay

SIM

20030 

CPT

85576 

Synonyms

PFT – Platelet Function Test;  PFA 

Specimen Type

Sodium Citrate Whole Blood and EDTA Whole Blood 

Container

4.5 ml Sodium Citrate 3.2% Blue stopper tube or if the 1.8 ml size sodium Citrate tube is drawn, 2 tubes are needed and one 3.0 ml EDTA Lavender stopper tube (Whole Blood).

Collection Instructions

DO NOT SEND SAMPLES THRU THE TUBE SYSTEM AFTER COLLECTION

Volume

4 ml Whole Blood 
Min: 2.0 ml 

Additional Information

none

Patient Preparation

none

Specimen Processing Instructions

Store Whole Blood at room temperature.  Do Not Centrifuge.

Transport Requirements

Room Temperature

Specimen Stability

Room Temperature Whole Blood: 4 hours  

Rejection Criteria

•  Clotted Sample 
•  Insufficient volume 
•  Plasma removed 

Reference Range

PFA Collagen / Epinephrine = 75 - 184

PFA Collagen / ADP = 44 - 142

Critical Value

None 

Test Includes

If results of the PFA Coll-Epi are greater than the reference range, we will test the sample using the test cartridge PFA Coll-ADP. 

Methodology

The PFA-100 is an instrument and test cartridge system in which the process of platelet adhesion and aggregation following a vascular injury is simulated in vitro.   

Testing Frequency

First and Second shift only, Daily, Monday - Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

2/2/2018

Supplemental

 

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