CHT Treatment Protocols & Procedures 5

Question 1

A tender accompanies a patient on Table 6. At the end of the treatment, what decompression procedure must the tender follow?

Accepted Answer

Follow the same Table 6 decompression schedule as the patient

Answer

The tender is subject to the same pressure exposure and must follow the Table 6 decompression to prevent developing DCS.

Question 2

When treating crush injury with HBO, the primary physiologic goal is to:

Accepted Answer

Decrease edema and reperfusion injury while enhancing tissue oxygenation

Answer

HBO reduces compartment edema through vasoconstriction while simultaneously delivering high oxygen levels, mitigating ischemia-reperfusion injury.

Question 3

According to NFPA 99, which item is prohibited inside a Class A (multiplace) hyperbaric chamber?

Accepted Answer

Electronic devices with lithium batteries not approved for hyperbaric use

Answer

Non-approved electronic devices, especially those with lithium batteries, pose ignition risks in oxygen-enriched environments and are prohibited.

Question 4

A patient with active chemotherapy using bleomycin is referred for HBO therapy. The correct approach is:

Accepted Answer

Defer HBO until bleomycin is cleared; bleomycin synergistically increases pulmonary O2 toxicity

Answer

Bleomycin markedly potentiates pulmonary oxygen toxicity and is a recognized relative contraindication that typically requires deferral.

Question 5

During a multiplace chamber treatment at 60 fsw, a fire breaks out inside the chamber. What is the immediate priority?

Accepted Answer

Switch all patients to air masks and activate the fire suppression system, then decompress in a controlled manner

Answer

Switching to air masks removes the oxygen source from patients' breathing circuits while suppression systems are activated; then controlled decompression removes personnel safely.

(CHT) Certified Hyperbaric Technician Practice Test

(CHT) Certified Hyperbaric Technician Practice Test

CHT Treatment Protocols & Procedures 5