Title 21: Food and Drugs
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/ PART 864 - HEMATOLOGY AND PATHOLOGY DEVICES
/ Subpart H - Hematology Kits and Packages / § 864.7695 Platelet factor 4 radioimmunoassay.
§ 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.
(b) Classification. Class II (performance standards).