§40.87 What are the cutoff concentrations for drug tests?
(a) As a laboratory, you must use the cutoff concentrations displayed in the following
table for initial and confirmatory drug tests. All cutoff concentrations are expressed in
nanograms per milliliter (ng/mL). The table follows:
|
Initial Test Analyte |
Initial Test Cutoff Concentration |
Confirmatory Test Analyte |
Confirmatory Test Cutoff Concentration |
|
Marijuana metabolites |
50 ng/mL |
THCA1 |
15 ng/mL |
|
Cocaine metabolites |
150 ng/mL |
Benzoylecgonine |
100 ng/mL |
|
Opiate metabolites |
|
|
|
|
Codeine/Morphine2 |
2000 ng/mL |
Codeine |
2000 ng/mL |
|
|
|
Morphine |
2000 ng/mL |
|
6-Acetylmorphine |
10 ng/mL |
6-Acetylmorphine |
10 ng/mL |
|
Phencyclidine |
25 ng/mL |
Phencyclidine |
25 ng/mL |
|
Amphetamines3 |
|
|
|
|
AMP/MAMP4 |
500 ng/mL |
Amphetamine |
250 ng/mL |
|
|
|
Methamphetamine5 |
250 ng/mL |
|
MDMA6 |
500 ng/mL |
MDMA |
250 ng/mL |
|
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|
MDA7 |
250 ng/mL |
|
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|
MDEA8 |
250 ng/mL |
|
1Delta-9-tetrahydrocannabinol-9-carboxylic acid (THCA) |
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2Morphine is the target analyte for codeine/morphine testing |
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3Either a single initial test kit or multiple initial test kits may be used provided the single test kit detects each target analyte independently at the specified cutoff |
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4Methamphetamine is the target analyte for amphetamine/methamphetamine testing |
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5To be reported positive for methamphetamine, a specimen must also contain amphetamine at a concentration equal to or greater than 100 ng/mL |
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6Methylenedioxymethamphetamine (MDMA) |
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7Methylenedioxyamphetamine (MDA) |
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8Methylenedioxyethylamphetamine (MDEA) |
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(e) On a 6-AM confirmed positive result:
(1) When a 6-AM confirmed positive result is reported and morphine for that specimen is
not reported at or above the 2000 per ng/mL confirmed positive cutoff, you must confer with the
MRO to determine if there was confirmed morphine below 2000 ng/mL.
(2) If morphine was not confirmed below 2000 ng/mL, you and the MRO must determine
whether further testing is needed to quantify the amount of morphine concentration present.
(3) If you find no detectable morphine at LOD upon further testing, you must report that
fact to ODAPC immediately.