Nitrous Oxide Study Guide for CDCA
Exam Questions & Answers | 160 Questions
with 100% Correct Answers | Verified |
Updated 2024
Nitrous oxide displaces ______ in lungs, this is more soluble than nitrous ✔✔Nitrogen
True or False
Nitrous Oxide is not metabolized in the body, it exists through the lungs ✔✔True
What are some signs of Anxiolytics signs ✔✔Patient is responsive, maintains airway, pain
rxn threshold is increased, pain perception is not eliminated as with LA
How should you treat a patient who has cardiovascular disease or hypertension? ✔✔Evaluate
carefully and consult with physician, slight myocardial depressant (Depressed the CNS)
What effect does nitrous oxide have on vitals when a patient is under minimal sedation?
✔✔Depresses HR & BP (slightly) , take vitals before & after N2O
When should you avoid using N20 on a pregnant patient? ✔✔1st trimester, physician must
give permission (not the dentist)
If a person becomes restless during N2O, what should you do? ✔✔Reduce N20 by 5%/min,
or turn down to 100% Oxygen
, How much N20 is secreted through the lungs? ✔✔100% is metabolized, excreted unchanged
What is titration and how do you achieve it? ✔✔Biological variability, no fixed dose, start
at 20% and adjust by 5-10% until patient is comfortable
What should you do if a patient becomes nauseated? ✔✔Give 100% oxygen & roll to side
or decrease by 5-10% increments
True or False
Can you use N20 on a patient who has emphysema? ✔✔False, it is contraindicated
How do we treat diffusion hypoxia? ✔✔100% oxygen for 5 minutes, most common in children
What color is the Nitrous tank? ✔✔Blue
What color the oxygen tank? ✔✔Green
How should Nitrous is stored? ✔✔Upright, at room temperature
Where is the air exchange in the body during nitrous oxide? ✔✔Respiratory system
exchanges CO2 & O2 across capillary membrane body spaces
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