It depends on the drug in question, the particular metabolism of the user, and whether they're an occasional or chronic user. Some drugs clear below the detection threshold in a few hours, others can be detected for weeks.
There can be other factors as well; for example, some (legal) over-the-counter medications can affect drug retention times (usually making them longer, so don't go getting ideas).
First of all, blood tests don't go back. Every drug will stay in your system for a certain amount of time. If that there is a drug in your system it will show up in the blood.
In order to get an answer, you need to be specific about which drug is being tested for.
90 days in a blood test 30-60 days in a urine test
The mouth swab test for alcohol can only test for alcohol from 12 hours back. There is not yet a mouth swab to detect long term alcohol abuse.
Normally no more than two or three days.
in urine, 72 hrs tops.
usually about 8 to 12 hours for full metabolization of the alcohol with a normal BMI and liver function.
30 days.
In my OB's office seconds. They do a urine test right there and have an result.
I would believe the blood test. Discuss the matter with your doctor.
I'm not sure what you're asking, but I think I get the picture. A blood test is not faster than a urine test, but it can show a positive result before a urine test. Most urine tests will be positive on or before the day of your expected period. Blood tests can show positive about 3 days after fertilization occurs. However, a urine test takes 3 minutes to do and a blood test will take hours, even maybe a day or two to get back.
Yes, if its a urine test for Alcohol. No, if its a standard drug test. Alcohol is not part of the standard drug test. It is less common in preemployment tests or random on-the-job testing, especially for safety sensitive jobs.
About 72 hours for the urine test. Much longer for the hair follicle test. EtG (ethyl glucuronide) is an alcohol metabolite that remains in your body for several days after the liver has cleared alcohol from the bloodstream.
it depends on how many milliliters of alcohol you consume divided by the average ratio of the alcohol content. The alcohol content is displayed on the back of the bottle.
Usually it's a "urine" test. It's fast. Never heard of a blood test for pregnancy.
Alcohol for a swab test go back
A home or urine test at a clinic takes 5 minutes or less. A blood test takes a few hours to come back. you can do a home test or clinic urine test once your period is late for the best accuracy a blood test can be done a few days before that with accuracy. ~pawsalmighty
Bleeding after a pap smear is not unusual. Blood in the urine could mean infection, stones, or other bladder or kidney disease, or could be an incidental finding.
Approximate detection period forXanax (Benzodiazepines- additional drug classes ) in urine -1-42 days in blood- unknown (this is expensive test ) And they can tell how much , but this will cost extra.
sometime hpt gives false positive... if you took a doctor's urine pregnancy test and came back negative then ask for a blood test--a blood test will tell you if you are pregnant or not- even if you have low hcg in your urine-and yes you could still pregnant with all the symptoms---best of health