CHS Wound Care & Tissue Healing Flashcards
6 cards from real CHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CHS Wound Care & Tissue Healing flashcards as text
Necrotizing fasciitis is a UHMS-approved indication for HBOT. What is the primary rationale for using HBOT as an adjunct in this condition?
Answer: Elevated tissue pO2 enhances leukocyte bactericidal activity against anaerobic organisms
HBOT raises local tissue oxygen levels, restoring the oxidative killing capacity of neutrophils against anaerobic and mixed-flora bacteria involved in necrotizing fasciitis.
When assessing a wound for HBOT candidacy using TCOM, a reading that increases to above 200 mmHg in 100% O2 at 1 ATA indicates what?
Answer: Adequate vascular supply exists and HBOT is likely to be beneficial
A TCOM that rises above 200 mmHg with supplemental oxygen at normobaric conditions demonstrates responsive vasculature capable of delivering hyperbaric oxygen benefits.
Which statement best describes the role of HBOT in treating compromised skin grafts and flaps?
Answer: HBOT reduces edema and supports angiogenesis to improve graft survival in at-risk tissue
HBOT decreases post-ischemic edema, supports new capillary growth into the graft, and provides oxygen to marginally perfused tissue to rescue compromised grafts and flaps.
A patient undergoing HBOT for a chronic non-healing wound is also receiving radiation therapy. Why might the irradiated tissue respond poorly to conventional wound care?
Answer: Radiation causes obliterative endarteritis resulting in chronic tissue hypoxia and impaired healing
Ionizing radiation damages small blood vessels (obliterative endarteritis), creating a hypoxic-hypovascular-hypocellular wound environment that impairs healing.
What is the term for the HBOT-approved condition characterized by bone death due to radiation damage?
Answer: Osteoradionecrosis
Osteoradionecrosis is the death of bone resulting from radiation-induced vascular insufficiency, and it is a UHMS-approved indication for HBOT.
Which wound measurement tool uses light reflection to provide a three-dimensional assessment of wound volume and surface area?
Answer: Structured light or stereophotogrammetry imaging system
Structured light and stereophotogrammetry systems capture 3D wound geometry non-contact, providing accurate volume and area measurements for tracking HBOT response.