Which professional works under the supervision of physicians or RNs?

• A. RN
• B. CNA
• C. Nurse Assistant
• D. LPN/LVN

Answer: (D)

The main idea here is understanding how supervision and licensure shape who works under physicians or RNs. An LPN/LVN is a licensed practical (or vocational) nurse whose scope of practice is defined and limited, and they provide basic bedside care, monitor patients, and may administer routine medications under the direction of a physician or an RN. Because their work is guided and supervised, this role naturally fits someone who operates under the supervision of higher-level providers. In contrast, a registered nurse has a broader scope and more autonomy, often coordinating care and supervising others. Nurse assistants or CNAs perform essential support tasks and operate under supervision as well, but they are not licensed professionals. Therefore, the licensed practical/vocational nurse is the professional who routinely works under supervision of physicians or RNs.