Nitrous Oxide CDCA Practice Questions & Answers 2023 (well graded)
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Course
Nitrous Oxide CDCA P
Institution
Nitrous Oxide CDCA P
What is the main cause for minimal contamination of N2O in a dental office?
possible answers: nasal hood not fitting properly, leaking hoses, scavenger system not being used right, or even could be patient talking and releasing nitrous into the air.
What are the effects of over-sedation?
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Nitrous Oxide CDCA Practice Questions
What is the main cause for minimal contamination of N2O in a dental office? correct answerspossible answers: nasal hood not fitting properly, leaking hoses, scavenger system not being used right, or even could be patient talking and releasing nitrous into the air.
What are the effects of over-sedation? correct answers-The patient should be told to signal or tell the operator if they become uncomfortable.
-Signs of agitation by being restless/fidgety.
-The patient may begin dreaming or hallucinating.
-Eyes become heavy/fixed, may close -Mouth breathing. -Uncontrolled laughter.
-Dizziness, lightheaded, nausea, vomiting.
-Patient may become too warm.
-Speech may become slurred.
-Patient could become unconscious.
If a patient was given 60% N2O and is suddenly taken off N2O, what could happen? correct answersdiffusion hypoxia
How is diffusion hypoxia treated? correct answersdiffusion hypoxia-lack of O2 following sedation, "hungover" feeling: headache, grogginess, nausea.
Know the two major muscles used for breathing. correct answers
How does N2O react with the respiratory system? correct answers
Can N2O be used on a patient with emphysema? correct answersIt is important to check with the patient's physician prior to administer N2O if they have COPD or emphysema. What profession has the highest % of N2O abuse? correct answersDDS then DH
What does tidal volume mean? correct answers
What medication should NOT be used for pain after the patient has been on N2O? correct answersThere aren't any pain meds that cannot be used because as soon as nitrous is off and 5 minutes with oxygen, the drug is pretty much out of the system, and there are very few contraindications other drugs anyways.
DURING nitrous sedation, opioids could depress the CVS in conjunction with nitrous, but shouldn't be a problem unless a person has congestive heart failure.
Know how the N2O procedure is completed/finished. correct answersN2O is completed with turning off nitrous and turning oxygen up to tidal volume for five minutes or longer if needed.
If the patient becomes nauseated while on N2O, should you reduce the N2O or stop it? correct answersStop it and put the patient on 100% Oxygen
Know what titration means and how it is achieved. correct answersmethod of administering a drug in incremental amounts until a desired endpoint is reached, using the least amount of drug possible to achieve patient comfort. How?
How much of N2O is excreted through the lungs? correct answersJust about all of it, 99%. The rest is eliminated through the skin.
If the bag collapses when the patient is using the nasal hood, what is happening: not enough gas is being
given or the patient needs a new nasal hood? correct answers
If a person becomes restless during N2O, what should you do, tell them to relax or decrease the N2O? correct answersReduce N2O because they should be relaxed naturally and it means they may be getting too much nitrous gas.
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