ABA ABA Anesthetic Equipment and Technology

Question 1

What is the primary purpose of the circle breathing system in anesthesia delivery?

Accepted Answer

To reuse exhaled gases after CO2 absorption

Answer

To deliver high fresh gas flows only

Answer

To prevent hypoxia by nitrogen enrichment

Answer

To measure end-tidal gas concentrations

Question 2

Which anesthesia machine safety device mechanically links N2O and O2 flow controls to prevent delivery of a hypoxic gas mixture?

Accepted Answer

Oxygen ratio monitor controller (ORMC)

Answer

Vaporizer interlock system

Answer

Fail-safe valve

Answer

One-way check valve

Question 3

In the United States, what does the color coding on medical gas cylinders indicate?

Accepted Answer

Gas content identification

Answer

Flow rate capacity

Answer

Maximum pressure rating

Answer

Cylinder manufacture date

Question 4

What is the function of the Adjustable Pressure Limiting (APL) valve in an anesthesia breathing circuit?

Accepted Answer

To vent excess gas and limit maximum circuit pressure

Answer

To humidify inspired gases

Answer

To prevent backflow of exhaled gases

Answer

To regulate fresh gas composition

Question 5

Which CO2 absorbent material was phased out of anesthesia machines due to reactions with volatile anesthetics producing toxic byproducts?

Accepted Answer

Baralyme

Answer

Sodasorb

Answer

Amsorb Plus

Answer

Medisorb

Question 6

What is the primary purpose of fresh gas decoupling in modern anesthesia ventilators?

Accepted Answer

To isolate fresh gas flow from tidal volume delivery during inspiration

Answer

To regulate humidity in the breathing circuit

Answer

To allow safe scavenging of waste anesthetic gases

Answer

To monitor fresh gas oxygen concentration