DAANCE Anesthesia Equipment and Delivery 2

Question 1

Which component of an anesthesia machine reduces high-pressure oxygen from the cylinder to a safe working pressure?

Accepted Answer

Pressure regulator (yoke block)

Answer

The pressure regulator reduces cylinder pressure to approximately 50 psi before gas enters the flowmeters.

Question 2

A demand-valve oxygen delivery system provides oxygen only when the patient:

Accepted Answer

Initiates an inspiratory effort

Answer

A demand valve senses the patient inspiratory effort and opens to deliver oxygen on demand.

Question 3

The function of a reservoir bag in an anesthesia breathing circuit is to:

Accepted Answer

Serve as a visual indicator of breathing and allow manual ventilation

Answer

The reservoir bag allows the assistant to visually monitor respiratory rate and tidal volume and can be squeezed to assist or control ventilation manually.

Question 4

Which mask size is generally appropriate for a preschool-aged child ages 3 to 5 during nitrous oxide sedation?

Accepted Answer

Size 2 (pediatric small)

Answer

Size 2 pediatric masks fit most children aged 3 to 5, minimizing gas leakage and ensuring accurate delivery of the N2O/O2 mixture.

Question 5

After each patient use, nitrous oxide nasal masks should be:

Accepted Answer

Sterilized in an autoclave or disinfected per manufacturer guidelines

Answer

Nitrous oxide nasal masks must be disinfected or sterilized according to manufacturer instructions between patients to prevent cross-contamination.

DAANCE - Dental Anesthesia Assistant National Certification Examination Practice Test

DAANCE - Dental Anesthesia Assistant National Certification Examination Practice Test

DAANCE Anesthesia Equipment and Delivery 2