A CNA, or Certified Nursing Assistant, is a healthcare professional who provides essential support to patients in various settings, such as hospitals, nursing homes, and assisted living facilities. Their primary responsibilities include assisting with daily activities like bathing, dressing, and eating, as well as monitoring patients' vital signs and reporting any changes to nursing staff. To become a CNA, individuals typically complete a state-approved training program and pass a certification exam. This role is crucial in the healthcare system, as CNAs help ensure that patients receive the care and attention they need, contributing to their overall well-being and comfort.