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
In an acute crush injury, early HBO2 is used adjunctively to:
Answer: Reduce edema and combat tissue hypoxia and ischemia-reperfusion injury
HBO2 reduces edema via vasoconstriction while maintaining oxygenation and limiting reperfusion injury.
Hyperoxic vasoconstriction is therapeutically useful in edematous wounds because it:
Answer: Reduces tissue swelling without causing hypoxia, due to high plasma O2
HBO2 constricts vessels to cut edema while the high dissolved O2 keeps tissue oxygenated.
Necrotizing soft tissue infection treated with HBO2 benefits because elevated oxygen tension:
Answer: Is bactericidal/bacteriostatic to anaerobes and supports host defenses
High oxygen inhibits anaerobes and enhances leukocyte and antibiotic activity in necrotizing infections.
Which factor most commonly impairs chronic wound healing and is targeted by HBO2?
Answer: Local tissue hypoxia
Persistent local hypoxia stalls healing, and HBO2 directly corrects the oxygen deficit.
Documentation for a wound HBO2 program should track which objective healing metric over time?
Answer: Wound surface area and depth measurements at intervals
Serial wound area and depth measurements objectively document healing progress and treatment response.
A wound fails to improve after numerous HBO2 sessions and TcPO2 stays low even in-chamber. This suggests:
Answer: The tissue may be non-responsive, warranting reassessment of the treatment plan
Persistently low in-chamber TcPO2 with no improvement indicates poor response and the need to reassess.
Topical oxygen therapy differs from systemic HBO2 wound treatment in that topical oxygen:
Answer: Applies oxygen only to the wound surface without systemic pressurization
Topical oxygen treats only the wound surface and is not equivalent to whole-body hyperbaric oxygen therapy.
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