General recommendations for saliva testing are to perform the test first thing in the morning or 2 hours after eating, drinking, or brushing your teeth. Do not rinse your mouth before testing.
Urinalysis strip (dipstick) is a narrow plastic strip which has several square-shaped pads of different colors attached to it. Each small pad represents a component of the test used to interpret urinalysis. When dipped in the urine, pad colors change in response to the chemical characteristics of the urine. The color changes are noted at specific time intervals and compared against the reference color chart/key.