# Quest Diagnostics, Inc.

- Location (FDA's records): Las Vegas, NV
- FDA decisions: 8 (2003–2016): 8 510(k) clearances
- Names in FDA's records: Quest Diagnostics, Inc. (7); Quest Diagnostics Incorporated (1)
- Product codes: DIO (3), DKZ (1), LAF (1), LCM (1), DJG (1), LDJ (1)
- Predicates its devices cite: 2 (1 its own); citations of its devices by later devices: 5 (1 its own)
- Recalls linked to its devices: 0 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Firms whose devices it cites most
- Roche Diagnostics Corp.: 1 (https://510kreport.com/company/roche-diagnostics)

## Firms that cite its devices most
- Omega Laboratories, Inc.: 4 (https://510kreport.com/company/omega-laboratories)

## Its most-cited devices
- K023626: Aml Haircheck-DT (Cocaine) (2003), cited by 2
- K051161: Quest Diagnostics Haircheck-DT (Amphetamines) (2005), cited by 1
- K042726: Quest Diagnostics Haircheck-DT (PCP (2005), cited by 1
- K042725: Quest Diagnostics Haircheck-DT (Opiates) (2005), cited by 1

## Recent decisions
- K152232: Quest Diagnostics HairCheck-DT (Cocaine) (Nov 18, 2016)
- K080381: Quest Diagnostics Methamphetamine Micro-Plate Eia (Jun 25, 2008)
- K062929: Quest Diagnostics Urine Cocaine Metabolite Eia (Dec 18, 2006)
- K051161: Quest Diagnostics Haircheck-DT (Amphetamines) (Nov 22, 2005)
- K042726: Quest Diagnostics Haircheck-DT (PCP (Jul 28, 2005)
- K042725: Quest Diagnostics Haircheck-DT (Opiates) (Jul 6, 2005)
- K040257: Quest Diagnostics Haircheck-DT (THC) (Jun 14, 2004)
- K023626: Aml Haircheck-DT (Cocaine) (Sep 29, 2003)

Source page: https://510kreport.com/company/quest-diagnostics