Test Code 62873062 Platelet Function EPI
Performing Laboratory
Torrance Memorial Laboratories
Specimen Requirements
Submit the following specimen:
Specimen Type: Whole blood
Container/Tube: Two 2.7 Blue tops (citrate)
Specimen Volume: Both tubes must be filled
Collection Instructions:
1. Venipuncture should be performed using a 21G or larger
needle. DO NOT USE BUTTERFLY.
2. Blood should be collected directly into blood collection
tubes.
3. Blood tubes must be inverted 3 – 4 times to mix.
4. Do not spin tubes.
Specimen Transport Temperature
Ambient
Storage Temp Stability:
Ambient: 4 hours
Methodology
Platelet adhesion
Reference Range
< 150 seconds
Closure time for established reference range valid only for patients with hematocrit levels > 35% and platelet counts > 150,000.
Day(s) Test Set Up/TAT
Performed:
Daily
Available STAT
TAT:
STAT < 1 hr
Routine < 4 hrs
Aliases
PFA Screen
CPT Code
85576