DAANCE Levels of Sedation 4 — Questions and Answers
Question 1: According to ASA guidelines, which physiological parameter is MOST likely to be affected first as a patient transitions from moderate to deep sedation?
- Protective airway reflexes (Correct answer)
- Blood pressure
- Heart rate
- Body temperature
Correct answer: Protective airway reflexes
As sedation deepens from moderate to deep, protective airway reflexes (gag, cough, swallow) are among the first responses to be partially or fully lost.
Question 2: A patient under minimal sedation (anxiolysis) is asked to squeeze the dentist's hand. What response is expected?
- Normal purposeful response (Correct answer)
- Reflex withdrawal only
- No response
- Response only to repeated stimulation
Correct answer: Normal purposeful response
During minimal sedation, cognitive function and physical coordination may be mildly impaired, but the patient retains normal purposeful response to verbal commands.
Question 3: Which statement BEST distinguishes deep sedation from general anesthesia?
- Deep sedation patients cannot be aroused at all
- Deep sedation patients can be aroused with repeated painful stimulation (Correct answer)
- General anesthesia patients can respond to verbal commands
- General anesthesia always requires intubation
Correct answer: Deep sedation patients can be aroused with repeated painful stimulation
In deep sedation, patients cannot be easily aroused but can respond purposefully to repeated or painful stimulation, whereas patients under general anesthesia are not arousable even with painful stimuli.
Question 4: During moderate (conscious) sedation, a patient becomes unresponsive to verbal commands but responds to a sternal rub. This represents unintended progression to which level?
- Minimal sedation
- Moderate sedation
- Deep sedation (Correct answer)
- General anesthesia
Correct answer: Deep sedation
Responding only to painful stimulation (like a sternal rub) rather than verbal commands indicates the patient has progressed into deep sedation.
Question 5: In the context of DAANCE, which sedation level requires the practitioner to be trained in Advanced Cardiac Life Support (ACLS)?
- Minimal sedation only
- Moderate sedation and above
- Deep sedation and general anesthesia (Correct answer)
- All sedation levels equally
Correct answer: Deep sedation and general anesthesia
Deep sedation and general anesthesia require the supervising practitioner to have ACLS training due to the risk of cardiovascular and respiratory compromise.
Question 6: Which monitoring parameter is considered MANDATORY for all levels of sedation in the dental office according to ADA guidelines?
- Capnography
- Pulse oximetry (Correct answer)
- EEG monitoring
- Arterial blood pressure (invasive)
Correct answer: Pulse oximetry
Pulse oximetry is mandatory for all levels of sedation to continuously monitor oxygen saturation and detect hypoxemia early.
Question 7: A child receives nitrous oxide/oxygen for a routine filling and remains fully awake and cooperative throughout. This BEST describes which sedation level?
- Moderate sedation
- Minimal sedation (anxiolysis) (Correct answer)
- Deep sedation
- No sedation required
Correct answer: Minimal sedation (anxiolysis)
Nitrous oxide at anxiolytic doses produces minimal sedation, where the patient is conscious, cooperative, and maintains normal airway reflexes.
DAANCE Levels of Sedation 4
According to ASA guidelines, which physiological parameter is MOST likely to be affected first as a patient transitions from moderate to deep sedation?