what do cut off level mean for blood tests and u.a. tests?

[jaciv]

I don't understand what the cut off levels mean for a urine test and blood test. I seen one that states cut off level 2000 for oxycontin but that was all I seen. Are the cut off levels the same for blood tests as for urine tests?

[Sandra Y, RPh]

Unfortunately, drug metabolism varies widely between individuals, so it's impossible to predict what your levels will be.

[Sandra Y, RPh]

Drug cutoff levels are the minimum concentrations of drugs or metabolites that must be present for the drug test to show positive. How much of a drug labs can detect depends on drug detection times, frequency of use, type of specimen, drug testing method, metabolism, and other factors. This varies from lab to lab. Another variable is whether the agency uses a test kit onsite or sends the results to a lab for analysis. If you're currently taking oxycodone and valium, it will likely test positive on either a blood or urine test.

Most employers will accept a positive drug test if you can show you are taking these medications under the supervision of a doctor.

[jaciv]

In my case with taking 40mg. oxycontin 3 times a day, oxycodone10mg. 5 times a day and valium10mg. 4 times a day what should my level be after given a blood test? I want to understand what I am reading when I look at my test results. Just a guess would be nice if possible.Blood test was sent to a lab for results.