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Toxicology Screen
Alternate Names : Amphetamines - Screen, Analgesics - Screen, Antidepressants - Screen, Barbiturates - Screen, Benzodiazepines - Screen, Blood Alcohol Test, Drug Abuse Screen, Isopropanol (Rubbing Alcohol) - Screen, Methanol - Screen, Narcotics - Screen, Phenothiazines - Screen
Definition Tests to evaluate the type (and roughly measure the amount) of legal and illegal drugs taken by a person.
Pictures & Images
 See all Pictures & Images
Why is the Test Performed?
This test can be used to evaluate possible accidental or intentional overdose or poisoning, such as when there is a need to evaluate the type and amount of legal and illegal drugs used by a person. The test can be performed to determine the cause of acute drug toxicity, to monitor drug dependency, and to determine the presence of substances in the body (for medical and/or legal purposes). See also: Drug abuse first aid.
If the test is used as a drug screen there is a finite amount of time after ingestion that the drug or any of its metabolites can be detected:- cocaine
- 2 to 4 days; up to 10 to 22 days with heavy use
- amphetamines
- heroin
- morphine
- phencyclidine (PCP)
- alcohol
- benzodiazepines
- up to 6 weeks with high level use
- hydromorphone
- tetrahydrocannabinol (THC)
- 6 to 11 weeks with heavy use
- propoxyphene
- methadone
- codeine
- barbiturates
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• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• How will the Test Feel?
• Normal Values
• What do Abnormal Results Mean?
• Special Considerations
• Risks
• Pictures & Images
Topics that might be of interest to you Diseases & Conditions
• Alcohol Withdrawal
• Alcoholism
• Analgesic Nephropathy
• Delirium
• Delirium Tremens
• Dementia
• Stroke Secondary to Cocaine
Tests & Exams
• Blood Pressure
• Venipuncture
Other Topics
• Acute
• Alcohol and Diet
• Antifreeze
• Bleeding
• Drug Abuse
• Drug Abuse First Aid
• Fainting
• Hypnotics
• Isopropanol Overdose
• Mercury
• Nausea and Vomiting
• Pain Medications
Review Date : 2/17/2002
Reviewed By : Michael C. Milone, M.D., Ph.D., Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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