Throughout February 2016
Test method and reporting changes

Throughout February 2016, Redwood Toxicology Laboratory will update the confirmation methods of opiates and cocaine in oral fluid tests to utilize liquid chromatography-tandem mass spectrometry (LC-MS/MS). Oxymorphone will also be detected in the opiates panel. Finally, barbiturates will be screened by enzyme immunoassay (EIA). A full list of changes is below.

Screen Test Name

Method

Cutoff

Barbiturates EIA 50 ng/mL


Confirm Test Name


Method

New Lower Cutoff1


Reports2

Cocaine
    - Cocaine
    - Benzoylecgonine

LC-MS/MS
LC-MS/MS

4 ng/mL
4 ng/mL

Quantitative
Quantitative

Opiates
    - Codeine
    - Hydrocodone
    - Hydromorphone
    - Oxycodone
    - Oxymorphone
    - Morphine

LC-MS/MS
LC-MS/MS
LC-MS/MS
LC-MS/MS
LC-MS/MS
LC-MS/MS

8 ng/mL
8 ng/mL
8 ng/mL
8 ng/mL
8 ng/mL
8 ng/mL

Quantitative
Quantitative
Quantitative
Quantitative
Quantitative
Quantitative
 - 6-monoacetylmorphine LC-MS/MS 4 ng/mL Quantitative

No action is required for customers that have been testing for these drugs. Confirmation of presumptive positive specimens will now use the updated methodology without any interruption in service.

As your dedicated laboratory partner, our goal is to provide tools that help optimize outcomes through state-of-the-art drug detection and scientifically credible data interpretation. By continuing to update methodologies to reflect current industry standards and efficient practices, we allow clients to receive tests faster and with increased performance.

Excellent service is always our top priority. If there is anything that we can do to improve your service experience, please do not hesitate to contact a Toxicology Support Representative at 800.255.2159, press option 5.

1. Indicates new, lower cutoff level.
2. Indicates no change from current test offering.
11 000 3537 REV1 2/16

Quality Commitment

Our accredited laboratory strives to provide you with supplies that comply with carrier guidelines and adhere to aviation regulations. In order to meet government regulatory requirements and legal evidentiary standards, specimens must not violate the laboratory specimen acceptance criteria.

Excellent service is always our top priority. If there is anything that we can do to improve your service experience, please do not hesitate to contact us.