# QUO: Adjunctive Heart Failure Status Indicator

- Device class: 2; regulation: 21 CFR 870.2200; FDA's rule: 510(k) required
- FDA decisions: 4
- 510(k) review time 2021–2025: median 238 days (middle half 183–269)
- Recalls: 0 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026; MAUDE to Sep 30, 2026

## Decisions per year (last 10)
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 1

## Most-cited predicates
- K222463: EchoGo Heart Failure (2022), cited by 5

Source page: https://510kreport.com/product-code/QUO
Data by year (CSV): https://510kreport.com/product-code/QUO.csv