Platelet Aggregation
Collection Restrictions
Call Hematology before collection
Testing is limited to a maximum of 6 patients each day of testing
Can ONLY collect:
- Monday - Friday
- 7:00 a.m. - 2:00 p.m.; specimens MUST be received in the Lab BEFORE 2:00 p.m.
Collection Requirements
Source: blood
Containers: Sodium citrate light blue and EDTA lavender
Volume:
- Sodium citrate: Three 2.7 mL in vacutainers filled to the line
- EDTA: 1 mL in vacutainer or 250 uL in microtainer
- If a CBC or CBCD is also ordered the EDTA can be shared
Special Instructions
Send to the lab immediately
Must be tested within 3 hours of collection
Turn Around Time
24-72 hours
Availability
Routine
Includes
ADP, Arachidonic Acid, Collage 5, Collage 1, Ristocetin 1, and Ristocetin 0.25
Lab Processing Instructions
Specimen: whole blood
Room temperature
- Do not check for clots
Offsites: Send whole blood at room temperature with a STAT courier
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Hematology
Instrumentation/Methodology
Whole blood impedance
Reference Ranges
Report includes maximum aggregation as well as pathologist interpretation
Agonist | Aggregation (ohms) |
---|---|
ADP, 10 uM | > 6 |
Arachidonic Acid, 0.5 mM | > 9 |
Collagen, 5 ug/mL | > 9 |
Collagen, 1 ug/mL | > 8 |
Ristocetin, 1 mg/mL | >5 |
Ristocetin, 0.25 mg/mL | 0 |
CPT
85576 x7