Certified Hyperbaric Technologist Test Hyperbaric Emergency Medicine

Question 1

What is the primary treatment protocol for acute carbon monoxide poisoning using HBO?

Accepted Answer

3.0 ATA for 60-90 minutes, initiated as soon as possible after exposure

Answer

1.5 ATA for 30 minutes the following day

Answer

2.0 ATA for 20 minutes within one week

Answer

Any pressure for any duration

Question 2

How does HBO therapy treat decompression sickness (the bends)?

Accepted Answer

By reducing bubble size through increased pressure and promoting inert gas elimination through oxygen breathing

Answer

By removing all gas from the blood

Answer

By lowering the patient's body temperature

Answer

By administering anti-inflammatory medications under pressure

Question 3

What US Navy Treatment Table is most commonly used for decompression sickness?

Accepted Answer

US Navy Treatment Table 6

Answer

US Navy Treatment Table 1

Answer

US Navy Treatment Table 9

Answer

US Navy Treatment Table 3

Question 4

What are the symptoms of acute arterial gas embolism (AGE)?

Accepted Answer

Sudden neurological symptoms (stroke-like), loss of consciousness, or cardiac arrest within minutes of surfacing

Answer

Gradual joint pain developing over 24 hours

Answer

Mild skin itching and fatigue

Answer

Only respiratory symptoms like coughing

Question 5

What is the role of HBO in treating gas gangrene (clostridial myonecrosis)?

Accepted Answer

HBO inhibits toxin production, kills anaerobic bacteria through oxygen toxicity, and enhances antibiotic effectiveness

Answer

HBO has no effect on gas gangrene

Answer

HBO only provides pain relief for gas gangrene

Answer

HBO replaces surgical debridement entirely

Question 6

What vital signs must be continuously monitored during emergency HBO treatment?

Accepted Answer

Heart rate, blood pressure, respiratory rate, oxygen saturation, and neurological status

Answer

Only temperature

Answer

Only blood pressure

Answer

No monitoring is needed during treatment