← Product Code [CDX](/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CDX) · K770940

# TOTAL THYROXINE (RIA) REAGENT SET (K770940)

_The Dow Chemical Co. · CDX · Jun 22, 1977 · Clinical Chemistry · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/IM/subpart-b%E2%80%94clinical-chemistry-test-systems/CDX/K770940

## Device Facts

- **Applicant:** The Dow Chemical Co.
- **Product Code:** [CDX](/submissions/CH/subpart-b%E2%80%94clinical-chemistry-test-systems/CDX.md)
- **Decision Date:** Jun 22, 1977
- **Decision:** SESE
- **Submission Type:** Traditional
- **Regulation:** 21 CFR 862.1700
- **Device Class:** Class 2
- **Review Panel:** Clinical Chemistry

## Regulatory Identification

A total thyroxine test system is a device intended to measure total (free and protein bound) thyroxine (thyroid hormone) in serum and plasma. Measurements obtained by this device are used in the diagnosis and treatment of thyroid diseases.

## Special Controls

*Classification.* Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.

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**Source:** [https://fda.innolitics.com/submissions/IM/subpart-b%E2%80%94clinical-chemistry-test-systems/CDX/K770940](https://fda.innolitics.com/submissions/IM/subpart-b%E2%80%94clinical-chemistry-test-systems/CDX/K770940)

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