Certified Hyperbaric Technologist Test Hyperbaric Chamber Operations 3

Question 1

Which of the following is an absolute contraindication to hyperbaric oxygen therapy?

Accepted Answer

Untreated pneumothorax

Answer

Diabetic foot ulcer

Answer

Carbon monoxide poisoning

Answer

Chronic osteomyelitis

Question 2

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

Accepted Answer

To reduce the risk of oxygen toxicity

Answer

To rest the technologist

Answer

To cool the chamber

Answer

To recompress the patient

Question 3

Early signs of central nervous system oxygen toxicity may include:

Accepted Answer

Twitching, visual changes, or nausea

Answer

Improved vision

Answer

Lowered heart rate only

Answer

Increased appetite

Question 4

If a patient begins seizing inside the chamber on oxygen, the immediate action is to:

Accepted Answer

Switch the patient to breathing air and maintain depth until tonic-clonic activity stops

Answer

Immediately and rapidly decompress

Answer

Increase oxygen flow

Answer

Pressurize deeper

Question 5

Why are patients with claustrophobia a special consideration in monoplace chambers?

Accepted Answer

The enclosed acrylic tube can trigger anxiety requiring reassurance or sedation

Answer

They cannot equalize their ears

Answer

Oxygen does not work for them

Answer

They must use heliox

Question 6

Which device is prohibited inside the chamber due to ignition risk?

Accepted Answer

Battery-powered or spark-producing electronics

Answer

A cotton blanket

Answer

A water-based pillow

Answer

A grounding strap

Question 7

A patient on insulin should have their blood glucose checked before treatment because hyperbaric oxygen can:

Accepted Answer

Lower blood glucose levels

Answer

Raise blood pressure permanently

Answer

Cause immediate seizures

Answer

Increase appetite