The collection of urine must be done by the patient himself. Urine should be collected in a sterile, dry bottle (usually provided by the laboratory service). The bottle must not contain any other product so as not to distort the results of the analyzes.
Each urinary examination has its own indications. All components contained in the urine can be examined and can be assayed. But also, urine tests can detect substances that should not normally appear in the urine, whose presence sign the evolution of an illness