1.
What does the multi-drug of abuse urine cup test
do?
The multi-drug of abuse urine cup test is a drug screen
test. It provides preliminary results for the detection
of one or more of the drugs at the cut-off level:
|
Abbreviation |
Test |
|
AMP |
Amphetamine |
|
BAR |
Barbiturates |
|
BZD |
Benzodiazepine |
|
COC |
Cocaine |
|
MET |
Methamphetamine |
|
MOR |
Morphine |
|
MTD |
Methadone |
|
PCP |
Phencyclidine |
|
TCA |
Tricyclics |
|
THC |
Marijuana/Hashish |
|
XTC |
MDMA or Ecstasy |
2.
What is cut-off level?
The cut-off level is the specified concentration of a
drug in a urine sample. Above that concentration the
test is called positive, and below that concentration it
is called negative.
3.
What are drugs of abuse?
Examples of drugs of abuse include marijuana, cocaine,
opiates, heroin, amphetamines, Ecstasy or MDMA, and
phencyclidine. Prescription drugs, such as morphine,
codeine or other painkillers, also may be abused.
4.
Common Street Names for Drugs
|
Drug |
Street Name |
|
Amphetamines |
Speed, Amp, Bennie, Chalk, Black beauties |
|
Cocaine |
Big C, Coke, Snow, Flake, Candy, Crack, Blow,
Rock |
|
Methamphetamines |
Crystal, Meth, Ice, Glass |
|
MDMA |
Ecstasy, E, Adam, XTC, X |
|
Opiates |
Heroin, H, Hairy hombre, horse, Jones, Scag |
|
Marijuana (THC) |
Pot, Weed, Herb, Bud, MJ, Doobie, Reefer, Grass
joint, Homegrown, Spliff |
|
Phencyclidine |
Angel dust, hog, Killer weed, |
5.
How long can the drugs be detected in urine?
The
following are guidelines only. The times can vary
significantly from these estimates depending on how long
the person has been taking the drug, amount of drug they
use, or the person's metabolism.
|
Drug |
Detection Times |
|
Minimum |
Maximum |
|
Amphetamines/ Methamphetamines (Speed/Uppers) |
4-6 hours |
2-3 days |
|
Cocaine (Crack) |
2-6 hours |
2-3 days |
|
Heroin (Opiates) |
2-6 hours |
1-3 days |
|
Marijuana (Pot) |
1-3 hours |
1-7 days |
|
Phencyclidine (Angel Dust/PCP) |
4-6 hours |
7-14 days |
6.
How accurate is the test?
The test is fairly sensitive to
the presence of drugs in the urine. This means that if
drugs are present, you will usually get a preliminary
positive result. If you get a preliminary positive
result, you should send the urine sample to the
laboratory for a second, more accurate test.
It is
very important to send the urine sample to the lab,
because the drug of abuse urine screening may give
positive results when no drugs are actually present.
Certain foods, food supplements, beverages, diet pills,
or over-the-counter medicines can cause a reaction with
the tests. Laboratories use a very reliable test, with
very few errors, to determine whether or not your sample
contains drugs.
Many
things can affect the accuracy of this test, including
but not limited to:
·
The way you did the test
·
The way you stored the test or urine
·
What the person ate or drank before taking
the test
·
Any prescription or over-the-counter drugs
the person may have taken before the test
55 consumers participated in a field study. The results
of the study are summarized below. All 14 incorrect
results are at drug concentrations at 50% ~ 150% of the
cutoffs.
|
Drug |
Cutoff Conc. (ng/ml) |
# Test |
Result Interpretation |
|
Correct |
Incorrect |
|
AMP |
1000 |
220 |
217 |
3 |
|
BAR |
200 |
220 |
219 |
1 |
|
BZD |
300 |
220 |
217 |
3 |
|
COC |
300 |
220 |
219 |
1 |
|
MET |
1000 |
220 |
219 |
1 |
|
MOR |
2000 |
220 |
217 |
3 |
|
MTD |
300 |
220 |
220 |
0 |
|
PCP |
25 |
220 |
220 |
0 |
|
THC |
50 |
220 |
219 |
1 |
|
TCA |
1000 |
220 |
219 |
1 |
|
XTC |
500 |
220 |
220 |
0 |
7.
If the test results are negative, can you be sure
that the person did not take drugs?
No. There are several factors that
can make the test results negative even though the
person is using drugs. Because
·
You may have tested for the wrong drugs.
·
You may not have tested the urine when it
contained drugs. It takes time for drugs to appear in
the urine after a person takes them, and they do not
stay in the urine indefinitely; you may have gotten the
urine too soon or too late.
·
The person knowingly added something to
the urine to prevent it from reacting with the test
chemicals.
·
The chemicals in the test went bad because
they were stored incorrectly or they passed their
expiration date.
If you get a negative result, but
still suspect drug abuse, you can test again at a later
time. You should also consider testing other types of
drugs. Talk to your doctor if you need more help
deciding what steps to take next.
8.
What is false positive result?
A
false positive result is a screening test read positive
when the drug or drug metabolite is not present or its
concentration is less than the cutoff level.
9.
What does Preliminary Positive mean?
The
Multi-Drug Urine Test is a screening test. It
is the first step in a two-step process. Screening
tests are not as accurate as laboratory test. It is
possible to get a positive result when the person did
not take drugs. For example, some medicines and food
may cause the screening tests to incorrectly read
positive. Things such as diet pills, inhalers and cough
syrup can cause a positive result. You consult with
your doctor to better understand how medications may
interfere with this test.
10.
Does a positive screen test mean that you have
found drugs of abuse?
No. Wait until you get the
laboratory's result. Remember that many factors may
cause a false positive result in the home test. It is
important to send any sample giving positive results to
the laboratory for further evaluation.
11.
What if the lab test confirms a positive result?
The lab uses very accurate and
reliable equipment to run the tests. If the lab reports
a positive result, it means the drug was present in the
urine sample. But do not assume the urine sample came
from a drug abuser.
People can test positive THC (or
marijuana) because they have been repeatedly around
heavy marijuana smoke even they did not smoke marijuana
themselves.
Consider all amphetamine results
carefully, even those from the lab. Some
over-the-counter medications contain amphetamines that
cannot be distinguished from illegally abused
amphetamines.
·
If you received a positive result and you
do not believe the test, consult your doctor. They have
your medical history and they can provide you with
detailed information.
·
If a positive result was confirmed,
consult you doctor to identify counselors who will help
you. You can also contact one of the resources listed
below for help.