CHS Emergency Procedures & Response 2

Question 1

A patient in a monoplace chamber develops a grand mal seizure during oxygen breathing. What is the FIRST action the operator should take?

Accepted Answer

Switch the patient to air and monitor until the seizure resolves

Answer

During an oxygen-induced convulsion, the oxygen source should be switched to air and the chamber held at depth until the seizure resolves before decompression begins.

Question 2

Which fire triangle element is most effectively controlled in a hyperbaric chamber to prevent combustion?

Accepted Answer

Oxygen

Answer

Because enriched oxygen environments dramatically lower ignition thresholds, controlling oxygen concentration is the primary fire prevention strategy in hyperbaric chambers.

Question 3

During a multiplace chamber dive, a tender reports sudden severe chest pain and dyspnea at depth. The most likely emergency diagnosis is:

Accepted Answer

Spontaneous pneumothorax

Answer

Sudden pleuritic chest pain with dyspnea at pressure is classic for tension pneumothorax, which can expand on decompression and become life-threatening.

Question 4

What is the recommended minimum distance from a hyperbaric chamber within which smoking and open flames must be prohibited?

Accepted Answer

25 feet

Answer

NFPA 99 requires a no-smoking and no-open-flame zone of at least 25 feet around hyperbaric chambers due to the fire risk associated with elevated oxygen.

Question 5

A patient undergoing hyperbaric treatment suddenly loses consciousness without a preceding seizure. After switching to air, the next priority is:

Accepted Answer

Assess airway, breathing, and circulation

Answer

Loss of consciousness requires immediate ABC assessment; airway management takes priority before any other intervention.

(CHS) Certified Hypertension Specialist Practice Test

(CHS) Certified Hypertension Specialist Practice Test

CHS Emergency Procedures & Response 2