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HelpTest Code LAB6403 Platelet Function Assay (PFA)-100 Profile, Whole Blood
Additional Codes
| Test Name in EPIC | EPIC Test Code | Mnemonic |
|---|---|---|
| PFA PROFILE | LAB6403 | PFAPR |
Methodology
Platelet Adhesion and Aggregation are Stimulated In Vitro and Quantified as Closure Time
Note: PFA tubes cannot be sent by courier, patient will need to present at Duluth or Fargo hospitals to be drawn.
Specimen Requirements
Specimens must be analyzed within 4 hours of draw. Do not send specimen through Pneumatic Tube System.
EDTA and sodium citrate whole blood are required.
Specimen Type: EDTA whole blood
Container/Tube: Lavender top (EDTA) tube
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions: Blood should be drawn using a 21-gauge or larger needle. Butterfly needles are not acceptable. Do not centrifuge.
Specimen Type: Sodium citrate whole blood
Container/Tube: Light-blue top (buffered sodium citrate [9:1]) tubes
Specimen Volume: 2 full tubes
Specimen Minimum Volume: 2.7 mL
Collection Instructions:
1. Blood should be drawn using a 21-gauge or larger needle. Butterfly needles are not acceptable.
2. Sodium citrate tube must be completely filled; blood to anticoagulant ratio is critical.
3. Do not centrifuge.
Specimen Transport Temperature
Ambient/Refrigerate NO/Frozen NO
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Coagulation-
East Region: SMDC Clinical Lab
West Region: Fargo Hospital Lab
Test Classification and CPT Coding
85576-Cartridge, each
Reference Values
Collagen/epinephrine closure time: 83-164 seconds
Collagen/ADP closure time: 54-117 seconds