# K023841: Ammonia Assay for the Advia 1650

- Pathway: 510(k) (Traditional)
- Applicant: Bayer Diagnostics Corp.
- Decided: Dec 24, 2002 after 36 days
- Product code: JIF (Enzymatic Method, Ammonia)
- Device class: 1
- Regulation: 21 CFR 862.1065
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names no predicate by number.

## Recalls of this device
- Jun 29, 2017 · Class II · Z-1646-2018: Various assays used to measure different chemical levels in blood, urine, or cerebrospinal fluid may interfere with the drugs sulfasalazine and/or sulfapyridine causing falsely elevated or falsely dep

## Indications for use
The Buyer ADVIA 1650 Ammonia method and calibrator is an in vitro diagnostic device intended to quantitatively measure ammonia levels in human plasma (heparin or EDTA). Such measurements are used in assessing hepatic function and diagnosis of Reye’s syndrome.

Source page: https://510kreport.com/device/K023841
Methodology: https://510kreport.com/methodology