CHS CHS Wound Care & Tissue Healing

Question 1

Which type of wound is considered a primary indication for hyperbaric oxygen therapy (HBOT) by the Undersea and Hyperbaric Medical Society (UHMS)?

Accepted Answer

Diabetic foot ulcer (Wagner Grade III or higher)

Answer

Superficial abrasion

Answer

Stage I pressure ulcer

Answer

Minor surgical incision

Question 2

What is the primary mechanism by which HBOT promotes wound healing?

Accepted Answer

Increases tissue oxygen tension to stimulate angiogenesis and collagen synthesis

Answer

Reduces wound temperature to prevent bacterial growth

Answer

Directly kills bacteria by high pressure alone

Answer

Removes necrotic tissue through osmotic pressure

Question 3

Which oxygen partial pressure is typically required at the wound bed to support optimal fibroblast function?

Accepted Answer

Greater than 30 mmHg

Answer

Less than 5 mmHg

Answer

Exactly 10 mmHg

Answer

Greater than 100 mmHg

Question 4

A CHS technologist notes that a patient's transcutaneous oxygen measurement (TCOM) at the wound site is 8 mmHg on room air. What does this finding indicate?

Accepted Answer

Severely compromised tissue perfusion unlikely to heal without intervention

Answer

Excellent wound healing potential

Answer

Normal baseline value requiring no further assessment

Answer

Patient is ready for discharge from HBOT

Question 5

What is the Wagner Classification Grade that typically represents a full-thickness wound with exposed tendon or joint capsule in a diabetic patient?

Accepted Answer

Grade 3

Answer

Grade 1

Answer

Grade 2

Answer

Grade 4

Question 6

Which post-HBOT wound care practice is recommended to maintain the oxygen benefit after treatment?

Accepted Answer

Apply a moist wound healing dressing to maintain a conducive healing environment

Answer

Leave the wound open to air for maximum oxygenation

Answer

Pack the wound tightly with dry gauze

Answer

Apply ice packs to reduce inflammation immediately