40.87
What are the cutoff concentrations for initial and confirmation tests?
(a)
As a laboratory, you must use the cutoff concentrations displayed in the following table for initial and confirmation drug tests. All cutoff concentrations are expressed in nanograms per milliliter (ng/mL). The table follows:
------------------------------------------------------------------------
Initial
Type of drug or metabolite test Confirmation test
------------------------------------------------------------------------
(1) Marijuana metabolites........ 50 ........................
(i) Delta-9-tetrahydrocanna-binol- 15
9-carboxylic acid (THC).
(2) Cocaine metabolites 300 150
(Benzoylecgonine).
(3) Phencyclidine (PCP).......... 25 25
(4) Amphetamines................... 1000 ........................
(i) Amphetamine.................... .......... 500
(ii) Methamphetamine................ ........... 500 (Specimen must also
contain amphetamine at
a concentration of
greater than or equal
to 200 ng/mL.)
(5) Opiate metabolites........... 2000 ........................
(i) Codeine...................... ........... 2000
(ii) Morphine.................... ........... 2000
(iii) 6-acetylmorphine (6-AM).... ........... 10 (Test for 6-AM in the
specimen. Conduct this
test only when specimen
contains morphine at a
concentration greater
than or equal to 2000
ng/mL.)
------------------------------------------------------------------------
(b)
On an initial drug test, you must report a result below the cutoff concentration as negative. If the result is at or above the cutoff concentration, you must conduct a confirmation test.
(c)
On a confirmation drug test, you must report a result below the cutoff concentration as negative and a result at or above the cutoff concentration as confirmed positive.
(d)
You must report quantitative values for morphine or codeine at 15,000 ng/mL or above.
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