Certified Hyperbaric Technologist Test CHT Hyperbaric Equipment and Operations 4

Question 1

What is the typical compression rate consideration when treating a patient prone to ear barotrauma?

Accepted Answer

Slow the rate of pressurization to allow equalization

Answer

Increase pressurization speed

Answer

Skip compression entirely

Answer

Use only oxygen during descent

Question 2

Which gas law explains why a sealed, non-vented air space (like a gas-filled cyst) shrinks during compression?

Accepted Answer

Boyle's law

Answer

Charles's law

Answer

Henry's law

Answer

Avogadro's law

Question 3

What is the purpose of an 'air break' during a hyperbaric oxygen treatment?

Accepted Answer

Reduce risk of central nervous system oxygen toxicity

Answer

Cool the patient down

Answer

Refill the oxygen supply

Answer

Test the intercom

Question 4

Before a treatment, why must a technologist verify the patient has removed all prohibited items?

Accepted Answer

To eliminate fire and static ignition hazards in the chamber

Answer

To reduce the chamber weight

Answer

To speed up compression

Answer

To improve oxygen analyzer accuracy

Question 5

What does a chamber's pressure gauge (manometer) display during treatment?

Accepted Answer

The pressure inside the chamber relative to ambient

Answer

The patient's blood oxygen

Answer

The oxygen flow rate to the mask

Answer

The chamber humidity

Question 6

During decompression (ascent), why are patients instructed to breathe normally and not hold their breath?

Accepted Answer

To prevent pulmonary barotrauma from expanding lung gas

Answer

To conserve oxygen

Answer

To equalize the ears

Answer

To reduce nitrogen narcosis

Question 7

Which staff role is typically required to be physically inside a multiplace chamber during treatment?

Accepted Answer

An inside tender (attendant)

Answer

The chamber operator

Answer

The referring physician

Answer

The facility safety director