Certified Hyperbaric Technologist Test CHT Patient Care and Safety in the Hyperbaric Environment 2

Question 1

Which item is strictly prohibited inside a monoplace hyperbaric chamber due to fire risk?

Accepted Answer

Petroleum-based lip balm

Answer

Petroleum-based products are flammable and forbidden in the oxygen-enriched chamber environment.

Question 2

A patient reports a feeling of fullness and pain in the ears during compression. What is the most appropriate first action?

Accepted Answer

Stop or slow compression and coach equalization techniques

Answer

Halting or slowing compression and coaching maneuvers like swallowing or Valsalva allows middle ear equalization and prevents barotrauma.

Question 3

What is the primary reason patients are grounded inside a hyperbaric chamber?

Accepted Answer

To prevent static electricity discharge that could ignite a fire

Answer

Grounding dissipates static charges that could create a spark in the oxygen-rich environment.

Question 4

Which vital sign change during treatment would most strongly suggest oxygen toxicity onset?

Accepted Answer

Twitching, visual changes, or seizure activity

Answer

CNS oxygen toxicity presents with muscle twitching, visual or auditory disturbances, and seizures.

Question 5

What humidity-related precaution helps reduce static fire risk in the chamber?

Accepted Answer

Keeping relative humidity above a minimum threshold

Answer

Maintaining adequate humidity reduces static electricity buildup and lowers ignition risk.

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