A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
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General Information
Alias: PFA, Bleeding Time
Performed: 24 hrs.
Turn Around Time: 5 hrs; performed at Children's Medical Center (CMC)
CPT Codes: 85576
Performed By: Referral Lab
Notes: PFA replaces the bleeding time
Clinical Utility: This is a screening test for congential or drug induced platelet dysfunction. Platelet counts of <=50,000 or hematocrit <=28% may interfere with Platelet Function Assay methodology.
Unacceptable Conditions: Transport through pneumatic tube system or clotted.
Components
Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
PFA-COL/ADP |
Platelet plug closure time |
|
|
63 |
114 |
sec |
PFA-COL/EPI |
Platelet plug closure time |
|
|
75 |
187 |
sec |
Specimen Requirements
Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
Blood |
TWO
Blue 3.2% Na Citrate, 3 ml
|
6 mL; Draw to fill line on both tubes |
mL |
Deliver specimens within 1 hour of collection. PFA tubes cannot be shared with other coag tests.
|
Room temperature
18- 25 oC (66.4-77 oF) stable for 4 hours.
|
|