Dental Hygiene Nitrous Oxide Examination Questions and Answers Graded A+

Dental Hygiene Nitrous Oxide Examination Questions and Answers Graded A+ What is the one absolute contraindication for the administration of nitrous oxide? Recent eye surgery using ocular gas bubble. What percentage of nitrous oxide to begin at? 15% What increments do you use to increase the nitrous oxide sedation level? 5% What should you instruct the patient about eating prior to the procedure? To avoid fasting and heaving meals prior to procedure (eat light). Should you have the patient remove their contacts prior to the procedure? Yes What are the 4 "a" properties nitrous oxide possesses? Analgesic, Anxiolytic, (slight amnesia and weak anesthetic). An analgesic agent- reduces intensity of pain but does not eliminate it A weak anesthetic agent An anxiolytic agent- has sedative effects; reduces anxiety Has amnesia producing qualities- patient cannot recall severity of pain What is nitrous oxide made from? Ammonium nitrate Is nitrous a solid, liquid or gas at room temperature? Gas What is nitrous oxides weight in comparison to air? It is heavier than air. ------- is defined as an unpleasant mental, emotional, physiologic sensation derived from a specific dental-related stimulus; identifiable source. Dental fear -------- is nonspecific, unease, apprehension, or negative thoughts about what might happen during a dental appointment; source unknown. Dental anxiety What could happen if the N2O tank is opened too quickly? Opening the tank valves too quickly could cause rapid pressure increase, increasing the temperature, which can cause a chemical reaction resulting in fire or explosion. 20% N20 and 80% 02 has the same analgesic effect as ----- mg morphine 15mg T/F N2O should not be used in combination with local anesthetics. False. N20/02 is used to enhance local anesthetic, but should NOT be used to substitute local anesthetic.