Question

Case Studies Barbara has just been hired as a dental hygienist in a busy general dentistry practice that sees many children. She is practicing in a state that allows dental hygienists to administer nitrous oxide, and she has been certified to do so. She notices that all children are routinely given nitrous oxide, and the majority of adult patients are also given nitrous oxide, even when there are no clear indications that it is needed. She also observes that many children have adverse reactions such as nausea, vomiting, or headaches after administration. The office manager tells her that everyone should be started on 50% nitrous oxide and that the office "doesn't have the time" to administer pure oxygen after the procedure. 22. Which are the most likely causes of nausea and vomiting after administration of nitrous oxide-oxygen sedation? a. Failure to gradually increase the level of nitrous oxide b. Dosage of nitrous oxide is too high c. Dosage of nitrous oxide is too low d. Eating a large meal before appointment e. Eating a light meal before appointment ab. a, c, and e ac. a, b, and d 23. How could headaches following the administration of nitrous oxide-oxygen sedation be prevented? a. Increase the dose. b. Lower the dose. c. Start with 100% oxygen for 2 to 3 minutes, and gradually increase nitrous oxide. d. At the termination of N20-02, place the patient on 100% oxygen for 5 minutes. 24. All are appropriate indications for use of nitrous oxide-oxygen sedation in dental treatment except: a. Use as a general anesthetic b. Adjunctive analgesia c. Anxiety relief for the anxious patient d. Adjunctive management for apprehensive children e. Making a long appointment more pleasant for the patient

Answer 1

22. A combination of nitrous oxide and oxygen is used in dentistry for managing pain and anxiety nowadays. The causes of nausea and vomitting after administration of nitrous oxide- oxygen sedation is

. Failure to gradually increase the level of nitrous oxide

. Dosage of nitrous oxide is too high

High dose of nitrous oxide can cause nausea, dizziness, vomitting, and other health problems. So try to increase its concentration gradually.

23. Headaches can be caused after intake of nitrous oxide- oxygen sedation. This can be prevented by

d. At the termination of nitrous oxide-oxygen sedation , place the patient on 100 percent oxygen for five minutes.

Oxygen helps to reduce the amount of nitrous oxide in the body .

Option d is the correct answer

24. Nitrous oxide- oxygen sedation is usef in dentistry for

. Making a long appointment more pleasant for patient.

. anxiety relief

. Analgesic

. general anesthetic is wrong

. adjunctive management of apprehensive children

Optio a is wrong

25. Nitrous oxide is a valuable adjunct in managing some apprehensive children before dental care. However, it cannot be used when a child's behavior is openly defiant or hysterical.

So option c is correct

First statement is true and second statement is false.

26. There are many safety measures in a dendistry

. Colour coded nitrous oxide cylinder which is green

.Fail safe system

. Scavenger system

Option b is incorrect

27. Option e is correct

Women exposed to high levels of nitrous oxide, five hours per day are seen less fertile than others .

So, check nitrous oxide concentration frequently and implant nitrous oxide scavengers in dendistry