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Holiday schedule

Our Patient Service Centers will be closed on Wednesday, December 25, 2024 in observance of Christmas and Wednesday, January 1, 2025 in observance of New Year's Day. Have a healthy, happy holiday.

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Quest Diagnostics

Drug Testing, General Toxicology (Blood, Urine, or Serum)

Test code(s) 91358, 91359, 91360

The current list of drugs and/or metabolites analyzed and their corresponding limits of detection can be accessed here.

If a compound of interest is not listed, please contact your local Quest Diagnostics laboratory as new compounds will be added continually based upon clinical need and availability of drug standards.

This FAQ is provided for informational purposes only and is not intended as medical advice. A clinician’s test selection and interpretation, diagnosis, and patient management decisions should be based on his/her education, clinical expertise, and assessment of the patient.

 

Document FAQS.101 Version: 1
Version 1 effective 02/11/2020 to present
Version 0 effective 07/17/2013 to 02/11/2020

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2024 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.