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PLTAR
PLATELET AGGREGATION WITH RISTOCETIN

Test Code PLTAR 
Test PLATELET AGGREGATION WITH RISTOCETIN 
Methodology PRP Optical Density 
Description Agonists include Ristocetin, ADP, Epinephrine, Collagen, and Arachidonic Acid.
Useful for the diagnosis of von Willebrand disease, and/or qualitative platelet abnormality. 
Specimen CALL NORDX AT (207) 662-2959 TO SCHEDULE TEST. PATIENT MUST PRESENT TO MAINE MEDICAL CENTER CAMPUS FOR TESTING.

NOTE: Testing cannot be performed on the following:
1. Patients on heparin therapy, or antiplatelet drugs.
2. Patients with thrombocytopenia (< 100,000). 

Reference Values An interpretive report will be issued. 
Analytic Time 1 Day 
Day(s) Test Set Up By appointment only, Tuesday,Wednesday,and Thursday (8:30 - 10:30 a.m.) 
CPT Code(s) 85576 x 5  

Special Instructions