Hyperbaric Wound Healing Flashcards
6 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 6 Hyperbaric Wound Healing flashcards as text
How does hyperbaric oxygen therapy promote wound healing?
Answer: By increasing tissue oxygen levels to stimulate angiogenesis, fibroblast proliferation, and white blood cell function
HBO therapy dramatically increases dissolved oxygen in plasma, promoting new blood vessel formation (angiogenesis), enhancing fibroblast collagen production, improving neutrophil bacterial killing, and reducing edema through vasoconstriction.
What is the recommended HBO protocol for diabetic foot ulcers?
Answer: 2.0-2.4 ATA for 90 minutes, 5 days per week for 20-40 treatments
Diabetic foot ulcers typically require treatment at 2.0-2.4 ATA for 90 minutes per session, 5 days per week, with a treatment course of 20-40 sessions depending on wound response.
What role does transcutaneous oxygen measurement (TcPO2) play in HBO therapy?
Answer: It assesses tissue oxygenation to predict wound healing potential and patient selection for HBO
TcPO2 measurements assess the oxygen level at the wound site, helping determine if the tissue is hypoxic and whether HBO therapy can adequately increase oxygen delivery to promote healing, guiding patient selection.
What is the mechanism by which HBO therapy helps treat chronic refractory osteomyelitis?
Answer: By increasing oxygen delivery to infected bone, enhancing antibiotic effectiveness and white blood cell bactericidal activity
HBO increases oxygen tension in infected bone tissue, which enhances neutrophil killing activity (which requires oxygen), potentiates certain antibiotics, stimulates osteoclast and osteoblast activity, and promotes new bone formation.
When should HBO therapy be discontinued for a non-healing wound?
Answer: If no measurable wound improvement is observed after 15-20 treatments
If a wound shows no measurable improvement (reduction in size, improved granulation tissue, decreased drainage) after 15-20 treatments, the case should be reviewed, as continuing HBO without demonstrated benefit is not warranted.
What is delayed radiation injury and how does HBO therapy treat it?
Answer: Progressive tissue damage from prior radiation therapy, treated by HBO-stimulated angiogenesis in damaged tissue
Delayed radiation injury (osteoradionecrosis, soft tissue radionecrosis) results from progressive vascular damage in previously irradiated tissue. HBO stimulates new blood vessel growth in the damaged tissue, restoring blood supply and healing capacity.
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