# QPO: Device To Preserve And Stabilize Relative Abundances Of Microbial Nucleic Acids In Clinical Samples

- Device class: 2; regulation: 21 CFR 866.2952; FDA's rule: 510(k) required
- FDA decisions: 1
- Recalls: 6 (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)
- 2021: 1

## Most-cited predicates

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