Certified Hyperbaric Technologist Test Hyperbaric Chamber Operations 5

Question 1

What unit does 'ATA' stand for in hyperbaric medicine?

Accepted Answer

Atmospheres Absolute

Answer

ATA stands for atmospheres absolute, the total pressure including atmospheric pressure at the surface.

Question 2

At sea level, the ambient pressure is equal to:

Accepted Answer

1 ATA

Answer

Sea-level atmospheric pressure equals 1 atmosphere absolute (1 ATA).

Question 3

What is the main rationale for hyperbaric oxygen in treating carbon monoxide poisoning?

Accepted Answer

It accelerates removal of CO from hemoglobin and increases dissolved oxygen

Answer

HBO shortens the half-life of carboxyhemoglobin and boosts dissolved plasma oxygen to oxygenate tissues.

Question 4

Communication between the chamber operator and the patient in a monoplace chamber is maintained primarily through:

Accepted Answer

An intercom and direct visual observation

Answer

Operators use an intercom system and continuous visual monitoring through the acrylic shell.

Question 5

What should the technologist do if grounding of the chamber and equipment is found to be inadequate?

Accepted Answer

Correct the grounding before treatment due to static fire risk

Answer

Proper grounding dissipates static charge; treatment should not proceed until grounding is verified safe.

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