CFR
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864.7695—Platelet factor 4 radioimmunoassay.
(a) Identification.
A platelet factor 4 radioimmunoassay is a device used to measure the level of platelet factor 4, a protein released during platelet activation by radioimmunoassay. This device measures platelet activiation, which may indicate a coagulation disorder, such as myocardial infarction or coronary artery disease.
Code of Federal Regulations
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