A blood drug test measures the actual amount of drugs in the blood at the time of the test. Unlike the blood drug test, the urine drug test results can not tell whether or not the person was under the influence at the time the test.

Blood Drug Test – The blood drug test is most often to determine the presence of current health issues such as nicotine, diabetes, HIV/AIDS, cholesterol levels, hepatitis and protein levels. Some insurance companies test for or examine other things depending on their own previous customer experience.

Urine Drug Test – The urine drug test is often used to determine use of illegal drugs, as well as prescription drugs and over the counter drugs that might provide an in-site into your health and personal habits. Did you know that more than 250 over-the-counter or prescription drugs can cause you to test positive for various substances in a urine drug test?