PROCEDURE
EDUCATION
TITLE: TEST INFORMATION - CUT-OFF VALUES
PRINCIPLE: A cut-off value is the level of test results, where they are called positive for a particular drug. There may be a drug level present below the cut-off, but for legal purposes such levels are to be disregarded and the sample is called negative.
TASC, Inc. does utilize this information to monitor a client's progress. This requires that clients refrain from any drug usage, so more sensitive testing is a necessity. For this reason, TASCLabs retained the use of the lower NIDA (SAMHSA) cut-off levels as a part of our routine testing program, rather than the current SAMHSA Workplace Testing Guidelines limits.
CUT-OFF VALUES:
|SCREENING TESTS |TASC Labs |TEST RANGE |SAMHSA |OASA | |
| |ng/ml |(Max) | | | |
|Alcohol (Ethanol) in mg/dL |25 |500 | | | |
|Amphetamine / Methamphetamine |500 |5,000 |1.000 |1,000 | |
|Barbiturates |300 |3,000 |None |200 | |
|Benzodiazepines |300 |5,000 |None |200 | |
|Cocaine (benzoylecgonine) |150 |5,000 |150 |150 | |
|Ecstasy |500 |1,000 | | | |
|Heroin Metabolite (6-AM) |10 |500 | | | |
|Marijuana metabolite (THC) |50 |200 |50 |50 | |
|Methadone |300 |5,000 |None |300 | |
|Opiates |300 |2,000 |2,000 |2,000 | |
|Phencyclidines (PCP) |25 |500 |25 |25 | |
| | | | | | |
|CONFIRMATION | |TASC-AZ |Quest |Med-Tox |SAMHSA |
| | |(LOD) | | | |
|Alcohol (Ethanol) | |20 | | | |
|Amphetamine / Methamphetamine |(ng/ml) |500 (62.5) |120 |500 |500 |
|Barbiturates |(ng/ml) |200 (75) |300 |200 |None |
|Benzodiazepines |(ng/ml) |200 (25) |80 |200 |None |
|Cocaine (benzoylecgonine) |(ng/ml) |150 (15) |150 |150 |150 |
|Ecstasy | |150 (?) | | | |
|Heroin Metabolite (6-AM) |(ng/ml) |10 (2.5) | | |10 |
|Marijuana metabolite (THC) |(ng/ml) |15 (3) |15 |15 |15 |
|Methadone |(ng/ml) |150 (75) |300 |150 |None |
|Opiates |(ng/ml) |300 (75) |300 |300 |2,000 |
|Phencyclidines (PCP) |(ng/ml) |25 (6.25) |25 |25 |25 |
| | | | | | |
CONFIRMATION SPECIFICS:
• ALCOHOL Ethanol, Methanol, Isopropanol and Acetone.
• AMPHETAMINES Amphetamine, methamphetamine and MDMA (Ecstasy). Also checks for pseudoephedrine (Sudafed) and phentermine (diet pills), which are sympathomimetic amines and not considered amphetamines.
• BARBITURATES Identifies the barbital substances, such as Amobarbitol (Amytl), Butabarbitol (Buticaps), Pentobarbitol (Nembutol), Phenobarbital (Luminal), Secobarbitol (Seconal).
• BENZODIAZEPINES Oxazepam (Serax) and Alprazolum (Xanax) metabolites
• CANNABINOIDS (MARIJUANA) THC-Carboxylic Acid
• COCAINE Identifies Cocaine and the metabolites of cocaine. (Benzoylecgonine - about 45%, Ecgonine Methyl Ester - about40%, Norcocaine, and cocaine analogs)
• METHADONE Identifies methadone metabolite EDDP
• OPIATES Identifies: Codeine, Morphine, Hydrocodone (Vicodin), Oxycodone (Percodan) and Hydromorphone (Dilauded).
• PHENCYCLIDINE (PCP) Identifies the presence of phencyclidine (PCP).
RELATED DOCUMENTS:
Illinois DHS-OASA Contract (FY-03) Exhibit T - May 1, 2002
SAMHSA Guidelines - 53 Fed. Register 11979 - April 11, 1988
Opiate Changes - 59 Fed. Register 29916 - June 9, 1994
SAMHSA Guidelines – 73 Fed. register 71858 – Nov. 25, 2008
Limits of Detectability – TASCLabs Manual – Doc. No. 09.020
Revision History:
|Date |Rev. No. |Change Description: |Author: |
|8/20/03 |0 |Original Document created |Bill Salas |
|3/1/05 |1 |Added Elmhurst Hospital Confirmation References |Bill Salas |
|10/6/06 |2 |Added details of what specific metabolites are tested. |Bill Salas |
|7/7/09 |3 |Lowered Cocaine cutoff to comply with new Workplace Guidelines of Nov. |Bill Salas |
| | |2008 | |
|7/23/09 |4 |Corrected error in very first sentence of document, “... where they will |Bill Salas |
| | |be called positive...” and not “negative” as originally written. | |
|6/2/14 |4 |Reformatted document for easier reading |B. Salas |
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