CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER H—MEDICAL DEVICES (parts 800 to 898) > PART 864—HEMATOLOGY AND PATHOLOGY DEVICES > SUBPART H—Hematology Kits and Packages (§864.7040 to §864.7925) > 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).

Code of Federal Regulations

[45 FR 60623, Sept. 12, 1980]