what can be detected by blood test.?

Question

If someone had taken drugs a week before a test would it still show up? what drugs will show and which will not?

when they draw blood for testing can they detect "E", pot etc.

Answer 1

BLOOD TESTs can be done for detecting various things.
For Drug abuse also blood test can be taken. Prospective employers and insurance company mostly demand the tests.

Drugs remain in our body at varying lengths. The longer you use drugs, the harder it is for your body to cleanse itself. For the most part, drugs are no longer detected after a week – with the exception of habitual cocaine use. In this case, cocaine is detected in the body for up to 3 months. While employers and insurance agencies may require you to provide urine sample, this sample is only able to detect drug use that occurred within the last 72 hours. Blood samples and saliva samples can also detect drug use for up to three days. If taking a drug test, it may be wise to schedule tests once drugs are no longer detectable.

While people attempt to pass a urine test by drinking excessive amounts of water, attempting to pass a blood test is much harder. For this reason, most insurance agencies use blood tests as part of their application process. If taking a drug test, your body is being tested for traces of cocaine, amphetamines, PCP, opiates (heroine), marijuana. In rare cases, over-the-counter and prescription medications provide false positive results. For example, Advil and Midol have offered a positive for marijuana, whereas prescription antibiotics may offer a false positive for cocaine. Thus, if you are currently taking medications for a cold or infection, attempt to reschedule the test or inform the medical professional of current medications. -

Answer 2

1

Answer 3

FYI,
drug test can even check by your breathing.

I had to do drug test for my 1st job they ask me to blow in pipe & they figure out whether I took drug in my life or not.