CHS CHS Wound Care & Tissue Healing 3

Question 1

In the context of HBOT for wound care, what does the term 'hypoxic drive' at the wound edge mean?

Accepted Answer

A gradient where the hypoxic wound edge stimulates growth factor release to recruit healing cells

Answer

The wound center is more oxygenated than the edge

Answer

The surrounding tissue is too oxygenated to allow healing

Answer

High oxygen levels paralyze local fibroblasts

Question 2

Which biofilm characteristic makes chronic wounds particularly resistant to standard antibiotic therapy?

Accepted Answer

Biofilm matrix protects bacteria from antibiotics and immune cells

Answer

Biofilms increase tissue perfusion making bacteria more active

Answer

Biofilms are only found in acute wounds

Answer

Biofilms release oxygen to sustain bacteria

Question 3

What clinical sign at a wound site would suggest an anaerobic infection that may specifically benefit from HBOT?

Accepted Answer

Crepitus (gas in tissues) with foul-smelling exudate

Answer

Bright red granulation tissue

Answer

Clear serous drainage

Answer

Intact surrounding skin

Question 4

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?

Accepted Answer

Adequate response warranting continuation of HBOT

Answer

Treatment failure requiring immediate discontinuation

Answer

The wound is fully healed

Answer

The patient needs twice-daily treatments immediately

Question 5

Which patient complication during HBOT wound care series would require immediate notification of the supervising physician?

Accepted Answer

New wound dehiscence or signs of spreading infection between sessions

Answer

Mild ear discomfort that self-resolves with swallowing

Answer

Mild fatigue after treatment

Answer

Slight skin dryness near the wound

Question 6

What is the primary reason that blood glucose control is critical in diabetic patients undergoing HBOT for wound healing?

Accepted Answer

Hyperglycemia impairs leukocyte function and vasoregulation, undermining HBOT benefits

Answer

High glucose enhances HBOT effectiveness

Answer

Blood glucose has no effect on wound healing under pressure

Answer

Low glucose is dangerous only during chamber pressurization