Test Code LAB318 Platelet Function
Specimen Requirement
Two 2.7 mL Sodium Citrate (blue-top) tubes
- Preferred collection with vacutainer system using 21g needle or larger.
-
Referring Labs: Samples must be accompanied by an EDTA sample or results of hematocrit and
platelet testing less than or equal to 24 hours old.
Specimen Stability
Specimen must be stored at room temperature, tested within four hours of collection, and NOT centrifuged.
Testing Schedule
Daily
Reference Range
Col / EPI 82 – 150
Col / ADP 62 – 118
ADP is performed only when EPI is > 150.
Testing Department
Hematology/Coagulation
Method
In vitro quantitative measurement of platelet adhesion and aggregation.
CPT Code
85576