Physical assessments may include urine samples to see what kind of drugs are inhabiting the body. Urine testing is usually used because it's easy and fast. These are typically sent to a third party to be tested for an outcome. Blood samples are not commonly requested, but they may be required if there is substantial evidence that the drug use is causing unnecessary bodily harm. An example of this is blood tests being ordered to see if excessive alcohol consumption is harming the liver. Sometimes hair samples or other kinds of biological specimens (saliva, sweat, etc.) are called for to test for certain types of drugs, or the metabolites of said drugs.Next
