Final answer:
A Registered Dental Hygienist may administer nitrous oxide under both general or direct supervision, based on the regulations of the state they practice in. Under direct supervision, the dentist must be present, whereas general supervision does not require the dentist's physical presence.
Step-by-step explanation:
A Registered Dental Hygienist (RDH) can administer nitrous oxide under either general or direct supervision depending on state regulations. Under general supervision, a hygienist can work without the dentist present in the office, provided that the dentist has authorized the procedure and a treatment plan is in place.
The dental hygienist must be well-trained in monitoring and adjusting the nitrous oxide levels to ensure the patient's safety and comfort. They must also be able to prepare the necessary equipment, maintain sterile conditions, and observe the patient's response to the gas throughout the procedure.
These responsibilities are similar to those undertaken by nurses under direct supervision when providing treatments such as dialysis, where they monitor the patient's vital signs and respond to changing needs during the treatment process.