Practice Test GeeksDAANCE - Dental Anesthesia Assistant National Certification Examination Practice Test
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Anesthesia Equipment and Delivery Flashcards

6 cards from real DAANCE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Anesthesia Equipment and Delivery flashcards as text

  1. The fail-safe mechanism on a nitrous oxide/oxygen machine is designed to:

    Answer: Prevent the N2O flowmeter from opening if oxygen supply pressure fails

    The fail-safe valve shuts off or reduces nitrous oxide flow if oxygen supply pressure drops, preventing delivery of a hypoxic gas mixture.

  2. A capnograph measures:

    Answer: End-tidal carbon dioxide concentration

    A capnograph displays the CO2 waveform in exhaled breath, with end-tidal CO2 (EtCO2) as the peak value, confirming ventilation and airway patency.

  3. Which oxygen delivery device provides the highest delivered oxygen concentration to a spontaneously breathing patient?

    Answer: Nonrebreather mask at 15 L/min

    A properly fitting nonrebreather mask with an inflated reservoir bag and 15 L/min flow can deliver 60 to 90 percent FiO2, the highest among standard devices.

  4. Color coding of oxygen cylinders in the United States uses which color?

    Answer: Green

    In the US, oxygen cylinders are color-coded green. Nitrous oxide cylinders are blue.

  5. The purpose of a scavenging system in a dental operatory is to:

    Answer: Remove waste anesthetic gases from the breathing zone

    Scavenging systems collect and remove waste gases to protect dental staff from chronic exposure to trace nitrous oxide.

  6. A full E-cylinder of oxygen contains approximately how many liters at full pressure?

    Answer: 660 liters

    A full E-cylinder of oxygen at 2000 psi contains approximately 660 liters of gaseous oxygen.

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