(a) Identification.
         An adenosine triphosphate release assay is a device that measures the release of adenosine triphosphate (ATP) from platelets following aggregation. This measurement is made on platelet-rich plasma using a photometer and a luminescent firefly extract. Simultaneous measurements of platelet aggregation and ATP release are used to evaluate platelet function disorders.
     
    
        
        (b) Classification.
         Class I (general controls).
     
    
        
            Code of Federal Regulations
        
        [45 FR 60609, Sept. 12, 1980]