CHT Exam verified questions with correct answers 2026\2027
A+ Grade
Hyperbaric medicine
- correct answer medical use of oxygen at a higher level than atmospheric pressure
What is the use of hyperbarics
- correct answer To increase blood oxygen in order to restore blood gases and tissue function to
promote healing and fight infection
Class A Chamber
- correct answer Multiplace Chamber system
What gas is multiplace chamber compressed with
- correct answer Air (21% oxygen and 79% nitrogen)
What is the maximum percentage of oxygen held in a multiplace chamber
- correct answer 23.5%
What needs to happen if the oxygen in a multiplace chamber goes above 23.5%?
- correct answer All people must be grounded or the people must be aborted
What is used to provide oxygen in a multiplace chamber?
- correct answer BIBS
What does BIBS stand for?
- correct answer Built in breathing system
What do you do when a patient starts seizing in a multiplace chamber?
- correct answer Remove the oxygen hood (BIBS)
, What rate should a multiplace chamber be ventuilated?
- correct answer 3 actual cubic feet per person in the chamber
How quickly should the emergency vent be able to decompress in a multiplace chamber?
- correct answer 6 minutes or less
What is the maximum electrical ground a chamber should be
- correct answer 1 ohm
What fire suppression system does a multiplace chamber have?
- correct answer a deluge system (sprinklers within chamber)
How long should the deluge system take to activate and at what pressure should it maintain?
- correct answer 3 seconds or less and 50 PSI greater than chamber pressure
Can you have an IV system in a multiplace chamber?
- correct answer yes
Class B Chamber
- correct answer Monoplace Chamber System
What is the highest amount of pressure provided in a monoplace chamber?
- correct answer 3 ATA
What type of material is allowed in Monoplace chambers
- correct answer 100% cotton or 50/50 cotton/polyester
What is the maximum electrical resistance for a monoplace chamber
- correct answer 1 ohm. Pt should be grounded to stretcher and the chamber
what is the fire suppression system in a monoplace chamber?
- correct answer There isn't one. There are sprinklers and fire extinguishers outside of the chambers
A+ Grade
Hyperbaric medicine
- correct answer medical use of oxygen at a higher level than atmospheric pressure
What is the use of hyperbarics
- correct answer To increase blood oxygen in order to restore blood gases and tissue function to
promote healing and fight infection
Class A Chamber
- correct answer Multiplace Chamber system
What gas is multiplace chamber compressed with
- correct answer Air (21% oxygen and 79% nitrogen)
What is the maximum percentage of oxygen held in a multiplace chamber
- correct answer 23.5%
What needs to happen if the oxygen in a multiplace chamber goes above 23.5%?
- correct answer All people must be grounded or the people must be aborted
What is used to provide oxygen in a multiplace chamber?
- correct answer BIBS
What does BIBS stand for?
- correct answer Built in breathing system
What do you do when a patient starts seizing in a multiplace chamber?
- correct answer Remove the oxygen hood (BIBS)
, What rate should a multiplace chamber be ventuilated?
- correct answer 3 actual cubic feet per person in the chamber
How quickly should the emergency vent be able to decompress in a multiplace chamber?
- correct answer 6 minutes or less
What is the maximum electrical ground a chamber should be
- correct answer 1 ohm
What fire suppression system does a multiplace chamber have?
- correct answer a deluge system (sprinklers within chamber)
How long should the deluge system take to activate and at what pressure should it maintain?
- correct answer 3 seconds or less and 50 PSI greater than chamber pressure
Can you have an IV system in a multiplace chamber?
- correct answer yes
Class B Chamber
- correct answer Monoplace Chamber System
What is the highest amount of pressure provided in a monoplace chamber?
- correct answer 3 ATA
What type of material is allowed in Monoplace chambers
- correct answer 100% cotton or 50/50 cotton/polyester
What is the maximum electrical resistance for a monoplace chamber
- correct answer 1 ohm. Pt should be grounded to stretcher and the chamber
what is the fire suppression system in a monoplace chamber?
- correct answer There isn't one. There are sprinklers and fire extinguishers outside of the chambers
