The title “Nurse Aide” is an umbrella term for the role, while “Certified Nursing Assistant” (CNA) is the credentialed title. Although these terms are often used interchangeably, the distinction is primarily regulatory. The difference hinges on whether the individual has completed a state-approved program, passed the required competency examination, and is officially listed on a state registry. Individuals holding the CNA credential are the recognized providers of direct patient care in many facilities.
Clarifying the Terminology: Nursing Assistant Titles
The distinction between a Nurse Aide and a Certified Nursing Assistant is rooted in certification status. The term “Nurse Aide” is a broad designation describing the function of assisting nurses with patient care. It may be used for an individual who is currently in training or who has not yet completed state-mandated requirements. The title Certified Nursing Assistant (CNA) signifies that the individual has successfully met the necessary training and testing requirements established by state and federal regulations.
Certified Nursing Assistant (CNA)
The designation of Certified Nursing Assistant is earned by passing a competency exam and being listed on the state’s Nurse Aide Registry. This requirement for standardized training and testing was established by the Omnibus Budget Reconciliation Act of 1987 to improve the quality of care in nursing homes. Attaining this credential confirms the individual possesses the foundational knowledge and practical skills to provide effective care under the supervision of a licensed nurse. Certification provides the legal authorization to practice the full scope of a nursing assistant’s duties in certified healthcare settings.
State-Specific Variations (STNA, LNA)
The title Certified Nursing Assistant is the most widely recognized across the country, but some states use alternative terminology for the same certified role. In Ohio, the credential is known as a State Tested Nursing Assistant (STNA), reflecting the state-specific testing process. Other states, such as Vermont and Arizona, use the title Licensed Nursing Assistant (LNA) for their certified professionals. Despite the variation in titles, the core function, training, and scope of practice for an STNA or LNA are equivalent to that of a CNA in other states.
The General Term: Nurse Aide
The term “Nurse Aide” serves as a generic title for the role that provides basic care to patients under the direction of a licensed nurse. This term may refer to a person actively enrolled in a training program or working without official certification. Although many facilities use “Nurse Aide” and “Certified Nursing Assistant” interchangeably, only the certified designation carries the legal authority to work in federally regulated facilities.
Core Duties and Responsibilities
The daily work of a Certified Nursing Assistant centers on assisting patients with Activities of Daily Living (ADLs), which are the fundamental tasks necessary for self-care and mobility. The CNA often serves as the primary caregiver who spends the most time directly interacting with patients. CNAs assist patients with personal hygiene, including bathing, grooming, and dressing, along with providing assistance with toileting and perineal care.
Mobility assistance is a component of the role, requiring CNAs to help patients move safely. This includes turning or repositioning bedridden residents to prevent bedsores, or ambulating patients to a chair or wheelchair. CNAs also provide support during mealtimes, serving meals, assisting with feeding, and monitoring food and fluid intake. These tasks are performed under the direct supervision of a Licensed Practical Nurse (LPN) or Registered Nurse (RN).
Beyond hands-on care, CNAs are responsible for monitoring and documenting a patient’s health status and reporting any changes to the supervisory nurse. This involves routinely taking and recording vital signs such as temperature, pulse, respiration, and blood pressure. Accurate and timely documentation of observations, care provided, and changes in the patient’s condition is necessary for maintaining continuity of care and informing the healthcare team.
The Path to Training and State Certification
Achieving the Certified Nursing Assistant credential requires completing a state-approved training program and passing a competency evaluation. Federal standards mandate that training programs consist of 75 clock hours of instruction, including a minimum of 16 hours of supervised practical training. Many states exceed this federal minimum, with some mandating over 120 hours of combined classroom and clinical instruction.
The competency evaluation is a two-part examination designed to assess theoretical knowledge and practical skill performance. The first part is a written or oral multiple-choice test covering the curriculum. The second is a hands-on skills evaluation where the candidate must demonstrate proficiency in several randomly selected patient care tasks. Once both sections are completed, the individual is placed on the state’s Nurse Aide Registry, officially earning the CNA title.
Maintaining the CNA certification requires continued employment and ongoing education. Most states require CNAs to work a minimum number of paid nursing or nursing-related hours, often 8 or 12 hours, within a 24-month period to qualify for renewal. Many states also require CNAs to complete a specified number of in-service education hours annually to keep their certification active and remain eligible to work.
Work Settings and Career Advancement
Certified Nursing Assistants are employed across a range of healthcare environments that require hands-on patient care and assistance with daily activities. The largest employers are long-term care facilities and nursing homes, where CNAs provide the bulk of direct care to residents.
Common Work Settings
- Hospitals
- Assisted living facilities
- Adult day care centers
- Home health care, providing services in private residences
The CNA role frequently serves as a foundational step for individuals pursuing more advanced nursing careers. The experience gained in providing direct patient care, monitoring vital signs, and communicating with the healthcare team offers practical knowledge for further education. Many CNAs leverage their credential and work experience to enroll in bridge programs that lead to becoming a Licensed Practical Nurse (LPN) or a Registered Nurse (RN). This professional pathway allows individuals to progress in their careers based on the clinical foundation established in the nursing assistant role.

