Urinary cannabinoids in monitoring abstinence in a drug abuse treatment program.
Arch Pathol Lab Med
; 111(8): 708-11, 1987 Aug.
Article
em En
| MEDLINE
| ID: mdl-3307687
ABSTRACT
Urine specimens from 162 adolescents entering a drug treatment program were tested for cannabinoids using a photometric immunoassay (EMITst) and thin-layer chromatography (TLC). The EMITst has a cutoff point of detection 25 ng/mL or less of 9-carboxy-tetrahydrocannabinol. When reported as positive, both tests appeared to be reliable. There were two false-positive EMITst results and three false-positive TLC results in the 67 urine specimens that did not contain cannabinoids. When reported as negative, however, the EMITst with its 100 ng/mL cutoff failed to detect almost 40% of all cannabinoid-positive specimens. Of the 65 chronic marijuana smokers in the present study who stated that they had smoked within two days of their admission into the treatment facility, 17 (26%) went undetected by the 100 ng/mL cutoff used by the EMITst method. In clinical settings such as drug treatment programs, tests for urinary cannabinoids should use a detection threshold at 20 ng/mL or less.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Canabinoides
/
Abuso de Maconha
Limite:
Adult
/
Humans
Idioma:
En
Ano de publicação:
1987
Tipo de documento:
Article