How do they do drug testing?

Drugs finally are found out in your liquids of a body and hair in one form or the friend. So, you will ask "to offer" the sample (copy) of one of these two which is presented to laboratory of check on drugs for the chemical analysis.
As your hair grow, the certain drugs can be found out during longer periods historically, but is typical only for heavy-duty and continuous use. The analysis of hair is least aggressive, but could not show recent use.
Research of blood is the most exact, but dear, definitely aggressive, and not allowed in the Federal program of check on drugs by this letter.
The saliva and the analysis of sweat are exact, but still popular methods by this letter.
The analysis wet is less aggressive than research of blood, it is typically least dear, and can find out infrequent or recent unique use.

For these reasons, the analysis wet - the most general test of a preparation, thus a copy wet it is probable, that you will present. Also, with what we shall adhere, addressing to your copy. If means of assembly of a copy will go according to the book you will begin, replacing the some people or all your clothes of street with one of that dress of type of hospital who allows your back party to endure, reduce probability, that you can import contraband something to interfere with your copy. Then эскорт adjusts you in " a dry room " which has no much in it, further to interfere with you to interfere with your copy. In absence of a dry room, it could be a lavatory with the cranes which have been switched off in the main valve and has painted water in toilets, also to prevent intervention. Or in case of, you эскорт could observe you or soar nearby while you are wetted in пузырьке.

Then your copy - away to laboratory of check on drugs where they will typically check it on a preparation directly or substances (метаболиты), made by your body when it processes (acquires) a preparation. If they will follow Federal supervising principles of check on drugs they will execute initial shielding and then will confirm results with more complex tests.

According to Federal supervising principles, check on drugs has two levels of reduction for positive detection. Thus, laboratories which follow supervising principles, believe, that check on drugs negative, if detection - below any level of reduction. In case of the analysis of urine, levels of reduction of check on drugs are measured in nanograms in a milliliter (¡á¡«úÓá¼¼/ml). For example, initial for marihuana 50 ¡á¡«úÓá¼¼«ó/ml should show shielding at least, and then confirming tests should prove at least 15 ¡á¡«úÓá¼¼«ó/ml. If initial shielding does not show at least at least 50 ¡á¡«úÓá¼¼«ó/ml it as believe, is negative, and confirming tests are not executed.

But, being expressed in prospect, gram - only thirty five thousand parts (0.035) from ounce, and nanogram - idle time million (0.000000001 or 10-9) gram. So, we speak about microscopic particles, измеримых only in several decrease in urine. Molecules. Hence, even infrequent, regional use of a preparation could force serving to bring check on drugs.