Quest Diagnostics tests for the following drugs: amphetamines, barbiturates, benzodiazepines, cocaine, marijuana, MDMA (Ecstasy) and its metabolite, methadone, opiates, oxycodone, phencyclidine (PCP) and propoxyphene, synthetic cannabinoids (“K2/Spice”) and synthetic stimulants (“Bath Salts”). Additionally, we offer specialized panels such as Medical Professional Panels for a broad range of prescription drugs more accessible in the healthcare industry and a steroids panel to detect performance-enhancing drugs and anabolic steroid use.
FAQs
How far back do urine drug tests read? ›
In general, the detection time is longest in hair, followed by urine and oral fluid. Drugs in hair may be detectable for approximately 90 days, whereas drugs in urine are generally detectable for one to seven days or longer in chronic users and in oral fluid from five to 48 hours.
What do doctors look for in a urine drug test? ›Urine drug tests are most commonly used to detect alcohol, amphetamines, benzodiazepines, opiates/opioids, cocaine and marijuana (THC).
How strong are urine drug tests? ›Current tests can detect almost all drugs or their metabolites. The tests commonly used in urine screening programs are based on immunoassays or thin-layer chromatography. Screening tests are not definitive, however.
How long does it take for a urine test to come back from the lab? ›Negative screening results are often released within 24 hours and non-negative screens are typically released within an additional 24 to 72 hours. Q: Can a urine drug test be beaten or adulterated? A: While it is the most common drug testing method, urine testing is not foolproof.
How long can urine sit before drug screen? ›Specimens can be stored in refrigerators at 2 to 8° C for up to two (2) days (48 hours) or frozen at 0° C, before testing.
How far back can a 10 panel urine test go? ›Detection times for a 10-panel drug screen
| Substance | Detection time frame |
|---|---|
| Cocaine | 2-4 days |
| Marijuana | 2-5 days for occasional users, and up to 10 days for daily users |
| Opiates | 2-3 days |
| Phencyclidine (PCP) | Up to 30 days for chronic users |
Dec 2, 2022
Most drugs of abuse stay in the body for at least a few days after the last use and are traceable with urine tests. Opioids like heroin and oxycodone are detectable for between 1 and 3 days after last use. Stimulants including cocaine, meth, and ADHD medications are detectable for about 2 or 3 days.
What do labs check for in a urine test? ›Urinalysis is used to find the cause of – or monitor – urinary tract infections (UTIs) like cystitis, bleeding in the urinary system, or kidney or liver disease. It can also be used for diabetes, some diseases of the blood, and urinary stones.
How do I know if I passed my drug test? ›How do you know if you passed a pre-employment drug test? If none of the substances being tested for were found in your specimen, your drug test results will be negative. Checkr's candidate portal allows candidates to conveniently check whether their employee drug testing results were negative or positive.
What foods to avoid before urine drug test? ›Patient must have diet free of avocados, bananas, tomatoes, plums, eggplant, hickory nuts, walnuts, pineapple and mollusks for 2 days prior to and during the collection. If advised by a physician, the patient should be off all drugs for 3 days. Restrict caffeine, nicotine and alcohol for 24 hours prior to collection.
How accurate is an urinalysis test? ›
Accuracy of Urinalysis for Disease Detection
| Test | Results | Sensitivity (%) |
|---|---|---|
| Dipstick | ≥ 1+ blood | 91 to 100 |
| Dipstick | ≥ 3+ protein | 96 |
| Dipstick | Abnormal leukocyte esterase | 72 to 97 |
| Abnormal nitrites | 19 to 48 |
Mar 15, 2005
Able to detect historic drug use, but not recent or sporadic drug use. Saliva: Less accurate than urine or blood. Specimen collected by administrator or under supervised observation and therefore more difficult to tamper with.
What can make a false positive on a drug test? ›Things that can cause a false positive test result on a drug test
- ADHD (attention deficit hyperactivity disorder) medications like methylphenidate (Ritalin)
- Antidepressants like bupropion (Wellbutrin), fluoxetine (Prozac) and trazadone (Desyrel)
- Beta blockers like labetalol (Trandate)
Jan 7, 2023
It's used to detect and manage a wide range of disorders, such as urinary tract infections, kidney disease and diabetes. A urinalysis involves checking the appearance, concentration and content of urine. For example, a urinary tract infection can make urine look cloudy instead of clear.
What shows up on a drug test for work? ›Tests are commonly used for five categories of drugs: Amphetamines; Cocaine Marijuana; Opiates; and Phencyclidine (PCP). Additional categories may include barbiturates, Benzodiazepines, ethanol (alcohol), hydrocodone, MDMA, methadone, methaqualone, or propoxyphene.
What is the detection period for urine drug tests? ›DETECTION TIMES
| Drug | Time |
|---|---|
| Single use | 3 d |
| Moderate use (4 times/wk) | 5–7 d |
| Daily use | 10–15 d |
| Long-term heavy smoker | >30 d |
Drug detection times
Alcohol: 3-5 days in urine, 10-12 hours in blood. Amphetamines: 1-3 days in urine and around 12 hours in blood. Barbiturates: 2-4 days in urine and 1-2 days in blood. Benzodiazepines: 3-6 weeks in urine and 2-3 days in blood.
Alcohol detection tests can measure alcohol in the blood for up to 12 hours, on the breath for 12 to 24 hours, urine for 12-24 hours (72 or more hours after heavier use), saliva for up to 12 hours, and hair for up to 90 days.