CHT Hyperbaric Chamber Operations & Safety 2

Question 1

During a hyperbaric treatment, a patient reports ear pain that does not resolve with swallowing or yawning. What is the correct action?

Accepted Answer

Stop compression immediately and begin slow decompression to the last comfortable depth

Answer

If a patient cannot equalize and ear pain persists, compression must stop and the chamber should return to the last comfortable depth to prevent barotrauma.

Question 2

What is the minimum fire suppression requirement inside a multiplace hyperbaric chamber during operations?

Accepted Answer

An internal deluge or sprinkler system capable of rapid chamber flooding

Answer

NFPA 99 and PVHO standards require multiplace chambers to have an internal deluge/sprinkler system to rapidly suppress fire in the oxygen-enriched environment.

Question 3

A monoplace chamber is pressurized with 100% oxygen to 2.0 ATA. What is the approximate partial pressure of oxygen the patient is breathing?

Accepted Answer

2.0 ATA

Answer

In a monoplace chamber pressurized with 100% oxygen, the partial pressure of O2 equals the absolute pressure — at 2.0 ATA, pO2 = 2.0 ATA.

Question 4

Which document governs hyperbaric facility safety standards in the United States?

Accepted Answer

NFPA 99 Health Care Facilities Code

Answer

NFPA 99 Health Care Facilities Code is the primary U.S. standard governing clinical hyperbaric facility safety, including chamber design, gases, and fire suppression.

Question 5

What is the purpose of performing a 'pressure test' on a hyperbaric chamber before a treatment session?

Accepted Answer

To confirm integrity of seals and absence of leaks before patient entry

Answer

A pre-session pressure test verifies that door seals, hull integrity, and penetration fittings are leak-free before a patient is placed inside.

(CHT) Certified Hyperbaric Technician Practice Test

(CHT) Certified Hyperbaric Technician Practice Test

CHT Hyperbaric Chamber Operations & Safety 2