A CNA, or Certified Nursing Assistant, is a healthcare professional who provides basic care to patients under the supervision of a Registered Nurse (RN) or Licensed Practical Nurse (LPN). CNAs are vital members of the healthcare team and work in various settings, including hospitals, nursing homes, assisted living facilities, and private homes.

Their responsibilities typically include assisting patients with activities of daily living (ADLs), such as bathing, dressing, grooming, eating, and mobility. CNAs may also help with transferring patients, taking vital signs, documenting patient information, and maintaining a clean and safe environment for patients. To become a CNA, individuals must complete a state-approved training program and pass a certification exam. Requirements may vary slightly depending on the state or jurisdiction.