KHQClass II

Radioassay, Triiodothyronine Uptake

21 CFR 862.1715 / Clinical Chemistry

KHQ is the FDA product code for Radioassay, Triiodothyronine Uptake, a class II device type, regulated under 21 CFR 862.1715. As of 2026-09-10, FDA records hold 93 510(k) clearances under this code, the most recent dated 1998-06-10, and one recall.

Classification record

Product code: KHQ
Device name: Radioassay, Triiodothyronine Uptake
Regulation: 21 CFR 862.1715
Device class: Class II
Review panel: Clinical Chemistry
Submission type: 510(k) exempt
Implant: No
Life sustaining or supporting: No
GMP exempt: No
Third party review eligible: No
Ingested clearances: 93
Ingested recalls: 1

Clearances, product code KHQ

By decision year

93 clearances under product code KHQ with a decision year between 1976 and 1998, 1980 the highest year at 9.

Show the numbers

510(k) clearances under FDA product code KHQ by decision year
Year	Clearances
1976	1
1977	7
1978	8
1979	6
1980	9
1981	4
1982	7
1983	3
1984	6
1986	7
1987	3
1988	5
1989	5
1990	4
1991	3
1992	2
1993	3
1994	3
1995	2
1996	2
1997	1
1998	2

Applicants with the most clearances

Product code KHQ

Applicants holding the most 510(k) clearances under product code KHQ
Applicant	Clearances
Abbott Medical	3
American Dade	3
Amersham Corp.	3
BD Becton Dickinson Vacutainer Systems Preanalytic	3
Ciba Corning Diagnostics Corp.	3
Miles Laboratories, Inc.	3
Syva Co.	3
Boehringer Mannheim Corp.	2
Dade, Baxter Travenol Diagnostics, Inc.	2
Siemens Healthcare Diagnostics Inc.	2

Companies listing this code with FDA

Companies whose registered establishments list this code

12 of 23 companies shown, in name order