Geisinger Medical Laboratories Test Catalog
PLATELET AGGREGATION PANEL |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2858 Geisinger Epic ID: 21449 | ||||||||||||||||
SPECIMEN COLLECTION |
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Specimen type: |
Platelet-rich plasma | ||||||||||||||||
Preferred collection container: |
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Alternate Collection Container: |
4.5 mL blue top (3.2% sodium citrate) tube
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Specimen required: |
18 mL (6 x 3 mL tubes) whole blood aliquot for a single study. | ||||||||||||||||
Special notes: |
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SPECIMEN PROCESSING |
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Specimen processing instructions: |
Do NOT process. Hand-deliver to the Coagulation Laboratory | ||||||||||||||||
Transport temperature: |
Room temperature. | ||||||||||||||||
Specimen stability: |
Room temperature: 4 hours. | ||||||||||||||||
Rejection criteria: |
Clotted, severely hemolyzed/lipemic/icteric, improperly filled tubes, improper anticoagulant ratio (HCT >55% and citrate not adjusted), refrigerated/frozen specimens, stability exceeded, or platelet count <50,000/mm3. | ||||||||||||||||
TEST DETAILS |
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Reference interval: |
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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: |
Platelet Aggregation of 4 agonists, two dilutions each: ADP, Epinephrine, Collagen and Ristocetin. | ||||||||||||||||
Methodology: |
Spectrophotometry - Light Transmission |
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Synonyms: |
Platelet aggregation study
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Clinical significance: |
Platelet Aggregation testing is performed 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: | 02/01/2023 |