DAANCE - Dental Anesthesia Assistant National Certification Examination Patient Monitoring Techniques Questions and Answers

Question 1

During a moderate sedation procedure, the capnograph alarm sounds and the digital EtCO2 reading drops to zero, with a corresponding flat waveform.
The pulse oximeter, however, still reads 98%.
What is the most likely cause of this finding?

Accepted Answer

There is apnea or a disconnection in the sampling line.

Answer

The patient is experiencing a bronchospasm.

Answer

The patient is developing malignant hyperthermia.

Answer

The pulse oximeter probe has malfunctioned.

Question 2

A dental anesthesia assistant is monitoring an obese patient and obtains a blood pressure reading of 175/105 mmHg using a standard adult cuff. Which of the following is the most critical and immediate next step?

Accepted Answer

Re-measure the blood pressure using a large adult or thigh cuff.

Answer

Document the reading and proceed with the sedation as planned.

Answer

Inform the dentist that the patient is severely hypertensive.

Answer

Administer supplemental oxygen and re-check in 5 minutes.

Question 3

While observing the ECG monitor during a sedation case, the assistant notes the sudden appearance of a single, wide, and bizarrely-shaped QRS complex that occurs earlier than the next expected beat. There is no P wave preceding it. This finding is best described as a:

Accepted Answer

Premature ventricular contraction (PVC)

Answer

Sinus arrhythmia

Answer

Premature atrial contraction (PAC)

Answer

Junctional escape beat

Question 4

Which of the following conditions is most likely to cause a pulse oximeter to display a reading that is falsely high or misleadingly normal?

Accepted Answer

Carbon monoxide poisoning

Answer

Hypothermia

Answer

Poor peripheral perfusion

Answer

Dark blue or black nail polish

Question 5

The primary purpose of using a precordial or pretracheal stethoscope during dental anesthesia and sedation is to provide continuous, real-time auditory monitoring of:

Accepted Answer

Respiratory patterns and heart tones.

Answer

The patient's level of consciousness.

Answer

Systolic and diastolic blood pressure.

Answer

Minute-to-minute changes in body temperature.

Question 6

When comparing patient monitoring devices, which provides the most immediate, breath-by-breath feedback on the adequacy of a patient's ventilation?

Accepted Answer

Capnograph (End-Tidal CO2)

Answer

Pulse Oximeter (SpO2)

Answer

Electrocardiogram (ECG)

Answer

Non-invasive blood pressure (NIBP) cuff