Certified Hyperbaric Technologist Test CHT Hyperbaric Medicine and Indications 5

Question 1

A scuba diver surfaces too rapidly and develops joint pain and skin mottling. This presentation is consistent with:

Accepted Answer

Decompression sickness (the bends)

Answer

Rapid ascent allows dissolved nitrogen to form bubbles in tissues, producing the joint pain and skin signs of DCS.

Question 2

A patient presents within minutes of a chamber air supply malfunction with sudden neurological deficits after a dive. The most likely emergency requiring immediate recompression is:

Accepted Answer

Arterial gas embolism

Answer

Arterial gas embolism causes acute neurological symptoms and is a medical emergency requiring immediate recompression therapy.

Question 3

Before treating a carbon monoxide poisoning patient with HBO, the technologist should know that pulse oximetry readings are unreliable because:

Accepted Answer

Standard pulse oximeters cannot distinguish carboxyhemoglobin from oxyhemoglobin

Answer

Conventional pulse oximeters read carboxyhemoglobin as oxyhemoglobin, falsely showing normal saturation in CO poisoning.

Question 4

A patient scheduled for HBO reports a recent upper respiratory infection with nasal congestion. The main concern is:

Accepted Answer

Inability to equalize, increasing barotrauma risk

Answer

Congestion impairs eustachian tube function and equalization, raising the risk of ear and sinus barotrauma.

Question 5

Necrotizing soft tissue infections (necrotizing fasciitis) are treated with adjunctive HBO in combination with:

Accepted Answer

Surgical debridement and antibiotics

Answer

HBO is adjunctive and must be combined with aggressive surgical debridement and antibiotics for necrotizing infections.

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test Practice Test

Certified Hyperbaric Technologist Test CHT Hyperbaric Medicine and Indications 5