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
In the context of HBOT for wound care, what does the term 'hypoxic drive' at the wound edge mean?
Answer: A gradient where the hypoxic wound edge stimulates growth factor release to recruit healing cells
The oxygen gradient from oxygenated peripheral tissue to the hypoxic wound center drives VEGF and other growth factor release, directing cell migration into the wound.
Which biofilm characteristic makes chronic wounds particularly resistant to standard antibiotic therapy?
Answer: Biofilm matrix protects bacteria from antibiotics and immune cells
The extracellular polysaccharide matrix of biofilms creates a physical and chemical barrier that shields embedded bacteria from both antibiotic penetration and phagocytic attack.
What clinical sign at a wound site would suggest an anaerobic infection that may specifically benefit from HBOT?
Answer: Crepitus (gas in tissues) with foul-smelling exudate
Crepitus from gas-producing anaerobes combined with malodorous exudate strongly suggests a clostridial or mixed anaerobic infection — a direct indication for adjunctive HBOT.
A CHS technologist documents a 20% reduction in wound surface area after 10 HBOT sessions. According to UHMS guidelines, this rate of healing suggests what?
Answer: Adequate response warranting continuation of HBOT
A reduction of 20–40% in wound area after 10–20 HBOT treatments is generally considered a positive response indicating the therapy is beneficial.
Which patient complication during HBOT wound care series would require immediate notification of the supervising physician?
Answer: New wound dehiscence or signs of spreading infection between sessions
New wound dehiscence or spreading erythema and warmth between sessions signals worsening infection or graft failure requiring urgent physician reassessment of the treatment plan.
What is the primary reason that blood glucose control is critical in diabetic patients undergoing HBOT for wound healing?
Answer: Hyperglycemia impairs leukocyte function and vasoregulation, undermining HBOT benefits
Hyperglycemia directly impairs neutrophil chemotaxis and killing, compromises microvascular function, and reduces the wound healing gains from HBOT.