Hyperbaric Wound Healing Flashcards
7 cards from real Certified Hyperbaric Technologist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hyperbaric Wound Healing flashcards as text
Delayed radiation injury (soft tissue radionecrosis) responds to HBO2 primarily because the therapy:
Answer: Induces neovascularization in irradiated, hypovascular tissue
HBO2 stimulates angiogenesis in the hypoxic, hypocellular, hypovascular irradiated tissue bed.
The Marx protocol for osteoradionecrosis classically combines HBO2 with:
Answer: Staged surgical management based on treatment response
The Marx protocol stages surgical intervention according to the patient's response to HBO2.
Compromised skin grafts and flaps benefit from HBO2 because oxygen:
Answer: Supports marginally perfused tissue and reduces ischemia-reperfusion injury
HBO2 salvages compromised grafts/flaps by oxygenating marginal tissue and limiting reperfusion injury.
Which laboratory or bedside finding suggests a chronic wound is hypoxic and may need HBO2 evaluation?
Answer: Persistently low periwound TcPO2 that rises with oxygen challenge
Low TcPO2 that improves with an oxygen challenge indicates correctable tissue hypoxia.
For a patient on the chemotherapy drug doxorubicin, the technologist should be aware that HBO2 may:
Answer: Potentiate the drug's cytotoxic and cardiotoxic effects
Doxorubicin is a recognized HBO2 interaction concern due to enhanced toxicity.
In a chronic refractory wound, HBO2 is best described as:
Answer: Adjunctive therapy combined with standard wound care
HBO2 is adjunctive and must accompany debridement, offloading, infection control, and good wound care.
Repeated daily HBO2 sessions improve wound bed quality largely by establishing:
Answer: A durable oxygen gradient that drives fibroblast and capillary growth over weeks
Cumulative daily exposures build a lasting oxygen gradient supporting fibroblast and capillary proliferation.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- nbdhmt.org — Renewal, eligibility, exam format, passing score, retake policy, score validity, fees, retake fee, test delivery, registration deadline · verified Oct 2026