According to Nina M. French, drug testing expert, conducting random testing can provide continual peace of mind for healthcare employers to ensure patient and staff safety. According to the U.S. Substance Abuse and Mental Health Services Administration (SAMHSA), an average of 103,000 doctors, nurses, medical technicians and health care aids each year are abusing or dependent on illicit drugs. Self-medication was a leading reason for the misuse of prescription medications among 55 physicians who were part of a 2013 study published in the Journal of Addiction Medicine.