Certified Hyperbaric Technologist Test Hyperbaric Chamber Operations

Question 1

What is the standard operating pressure for most clinical hyperbaric treatments?

Accepted Answer

2.0-3.0 ATA (atmospheres absolute)

Answer

Most clinical hyperbaric oxygen treatments operate between 2.0-3.0 ATA, with 2.4 ATA being the most common pressure for wound healing and 2.8 ATA used for conditions like carbon monoxide poisoning.

Question 2

What is the purpose of the pressurization (compression) phase in hyperbaric treatment?

Accepted Answer

To gradually increase chamber pressure to the prescribed treatment depth while allowing the patient to equalize

Answer

Compression gradually increases chamber pressure to the prescribed depth at a controlled rate (typically 1-3 psi/minute), allowing patients to equalize middle ear and sinus pressures through swallowing, jaw movement, or Valsalva maneuver.

Question 3

What emergency procedure is used if a fire occurs inside a monoplace hyperbaric chamber?

Accepted Answer

Immediately decompress the chamber and remove the patient

Answer

Fire in a monoplace chamber requires immediate decompression per emergency protocol while simultaneously notifying emergency services, as the enriched oxygen environment makes fire extremely dangerous and fast-spreading.

Question 4

What is the function of the BIBS (Built-In Breathing System) in a multiplace chamber?

Accepted Answer

To deliver 100% oxygen to patients through a mask while the chamber is pressurized with air

Answer

BIBS delivers 100% oxygen via an oronasal mask or hood to patients inside a multiplace chamber that is pressurized with air, allowing oxygen treatment while maintaining a safe chamber atmosphere.

Question 5

What is the maximum oxygen concentration allowed in a multiplace hyperbaric chamber?

Accepted Answer

23.5% to minimize fire risk

Answer

The oxygen concentration in a multiplace chamber must be maintained below 23.5% to minimize fire risk, achieved through proper ventilation and exhaust of the patient's expired oxygen through the BIBS overboard dump system.

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test Hyperbaric Chamber Operations