Throughout December 2015
Test method and reporting changes

Throughout December 2015, Redwood Toxicology Laboratory will update the confirmation methods of various urine tests to utilize the industry's most advanced, sensitive, and specific analytical method, liquid chromatography-tandem mass spectrometry (LC-MS/MS). Additionally, many drugs/metabolites will now be reported quantitatively. A full list of changes is below.

Test Name

Method

Cutoff

Reports

Soma
    - Carisoprodol
    - Meprobamate

LC-MS/MS
LC-MS/MS

100 ng/mL
100 ng/mL*

Quantitative
Quantitative

Cotinine
    - Cotinine
    - Nicotine
    - Hydroxycotinine

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

15 ng/mL*
15 ng/mL*
15 ng/mL*

Quantitative*
Qualitative*
Qualitative*

Methadone
    - Methadone
    - EDDP (Meth.metab.)

LC-MS/MS
LC-MS/MS

100 ng/mL*
100 ng/mL*

Quantitative
Quantitative

Amphetamines
    - Amphetamine
    - Methamphetamine
    - MDA
    - MDMA
    - MDEA

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

250 ng/mL*
250 ng/mL*
250 ng/mL*
250 ng/mL*
250 ng/mL*

Quantitative*
Quantitative*
Quantitative
Quantitative
Quantitative

* Indicates no change from current test offering.

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.

11 000 3533 REV1 12/15

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.