# K983812: Napa Eia Assay

- Pathway: 510(k) (Traditional)
- Applicant: Diagnostic Reagents, Inc.
- Decided: Nov 16, 1998 after 19 days
- Product code: LAN (Enzyme Immunoassay, N-Acetylprocainamide)
- Device class: 2
- Regulation: 21 CFR 862.3320
- Recalls of this device: none
- 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. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
The N-Acetylprocainamide (NAPA) Enzyme Immunoassay is intended for in vitro diagnostic use for quantitative determination of N-acetylprocainamide in human serum or plasma. NAPA is the major metabolite of procainamide. Its pharmacologic activity is almost equal to that of procainamide. Furthermore, serum NAPA concentration may exceed its parent drug concentration. Therefore, simultaneous measurement of procainamide and NAPA serum concentration is critical in achieving optimal procainamide therapy.

Source page: https://510kreport.com/device/K983812
Methodology: https://510kreport.com/methodology