The results of a drug test are used conclusively for the diagnosis and treatment of both long-term and short-term drug abuse. It is a confirming toxicological test. The testing is effective in identifying and treating drug or alcohol abuse that is unlawful or prohibited. Forensic information, medical screening, and medication monitoring may all be reasons for ordering this test. Both employees and athletes may testing. Drowsiness, tiny or dilated pupils, seizures, delirium and an irregular heartbeat are common signs of drug misuse.