Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB2858         Geisinger Epic ID: 21449

Specimen type:
Whole blood
Preferred collection container:
Alternate Collection Container:
4.5 mL blue top (3.2% sodium citrate) tube
Specimen required:
Six (6) 3.2% sodium citrate blue top tubes, as above.
Special notes:
This test must be scheduled with the Hematology/Coagulation Laboratory (570-271-6323). Test available Monday through Friday. Specimen should be drawn and received in the laboratory as soon as possible between the hours of 9 a.m. and 12 noon. Collection and testing to be done at Danville lab only. Specimen should be hand delivered to the Hematology/Coagulation Laboratory, not sent through the pneumatic tube system.
Patient preparation:
Platelets should be > 100,000/mm3. No aspirin-containing medications, non-steroidal anti-inflammatory drugs, or cardiovascular meds such as dipyridamole for two (2) weeks prior to testing.

Specimen processing instructions:
Do not centrifuge, refrigerate or freeze specimen. Processing is to be done by GMC Laboratory personnel. 
Transport temperature:
Room temperature.
Specimen stability:
Room temperature: 4 hours.
Rejection criteria:
Clotted specimen or platelet count less than 100,000/mm3.

Reference interval:
Normal response.
Additional information:
CPT code(s):
85576 x4
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
ADP Panel, Collagen Panel, Epinephrine Panel, Ristocetin Panel.
Platelet Aggregation
PAGGP, Platelet aggregation studies
Clinical significance:
Platelet aggregation testing is done to confirm and identify if platelet dysfunction is due to an intrinsic platelet defect, congenital platelet defects, von Willebrand disease, or exposure to platelet inhibiting agents.
Doctoral Director(s:)
Michelle Grant DO    
Review Date: 03/28/2022

Performing Locations

Geisinger Medical Center

Performing laboratory: Coagulation
Technical Lead: Margaret Knowles-Tuchman
Frequency: Daily, 1st shift
Performed STAT? No
Locations  |    Search  |    Site Map |   Contact Us
©2000-2022 Geisinger Health System.   All rights reserved.