21 CFR 864.7675
§ 864.7675 Leukocyte peroxidase test.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 864.7675, § 864.7675 Leukocyte peroxidase test, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/89385
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Full text
(a) Identification. A leukocyte peroxidase test is a device used to distinguish certain myeloid cells derived from the bone marrow, i.e., neutrophils, eosinophils, and monocytes, from lymphoid cells of the lymphatic system and erythroid cells of the red blood cell series on the basis of their peroxidase activity as evidenced by staining. The results of this test are used in the differential diagnosis of the leukemias.
(b) Classification. Class I (general controls). This device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 864.9.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.