EDAIC Anesthetic Equipment and Safety 2

Question 1

Which agent is used in a soda lime CO2 absorber and can degrade sevoflurane to produce the nephrotoxic compound Compound A?

Accepted Answer

Sodium hydroxide

Answer

Sodium hydroxide (NaOH) in soda lime reacts with sevoflurane to produce Compound A (fluoromethyl-2,2-difluoro-1-trifluoromethylvinyl ether).

Question 2

On a variable-bypass vaporizer, increasing the temperature of the operating room will have what effect on vapor output concentration if the dial remains unchanged?

Accepted Answer

Concentration remains stable due to temperature compensation

Answer

Variable-bypass vaporizers incorporate bimetallic strip temperature-compensating mechanisms that maintain a constant output concentration despite ambient temperature changes.

Question 3

What color is the oxygen pipeline hose and wall outlet in the United States medical gas standard?

Accepted Answer

Green

Answer

In the US (NFPA 99 standard), oxygen pipeline systems and outlets are color-coded green.

Question 4

The fail-safe valve on an anesthesia machine is designed to prevent delivery of a hypoxic mixture by:

Accepted Answer

Cutting off nitrous oxide flow if oxygen pressure falls below threshold

Answer

The fail-safe (pressure-sensor shutoff) valve closes the nitrous oxide supply when oxygen pipeline pressure falls below a set threshold, preventing hypoxic gas delivery.

Question 5

A circle breathing system with a CO2 absorber becomes exhausted. Which clinical sign would appear first?

Accepted Answer

Increase in end-tidal CO2

Answer

Exhausted CO2 absorbent allows CO2 rebreathing, causing the first detectable sign of a rising end-tidal CO2 on capnography.

EDAIC - European Diploma in Anesthesiology and Intensive Care Practice Test

EDAIC - European Diploma in Anesthesiology and Intensive Care Practice Test

EDAIC Anesthetic Equipment and Safety 2