Title 21: Food and Drugs
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/ PART 864 - HEMATOLOGY AND PATHOLOGY DEVICES
/ Subpart H - Hematology Kits and Packages / § 864.7525 Heparin assay.
§ 864.7525 Heparin assay.
(a) Identification. A heparin assay is a device used to determine the level of the anticoagulant heparin in the patient's circulation. These assays are quantitative clotting time procedures using the effect of heparin on activated coagulation factor X (Stuart factor) or procedures based on the neutralization of heparin by protamine sulfate (a protein that neutralizes heparin).
(b) Classification. Class II (performance standards).