Certified nursing assistants (CNAs) are extremely valuable health care providers, especially to their patients, the families of the patients, and employers at health care facilities. CNAs help care for physically or mentally ill, injured, and disabled individuals in hospitals, nursing and personal care facilities, and mental health settings. CNAs perform much-needed daily tasks, such as serving meals, making beds, and helping patients eat, dress, and bathe. CNAs work under the supervision of nursing and medical staff and are important members of the health care team. CNAs take temperatures, pulse, respiration, and blood pressure; help patients with range-of-motion exercises; and assist patients with their daily living needs. May include a geriatric specialty.