Drug Test.

A Drug test is a technical analysis of a biological specimen - for example urine,hari,blood,sweet, or oral fluid. To determine the presence or absence of specified parent drugs or their metabolites. Major uses of drug testing are to detect the presence of performance enhancing steroids in sport or for drug prohibited by laws.

marijuana test

The detection window depend upon multiple factors- drug class, amount, frequency of use for ease of use the detection of times of metabloites have been incoporated into each parent drug.