Wound Care Certification Exam Wound Care Certification Lower Extremity Wound Management 3

Question 1

Total contact casting (TCC) is considered the gold standard offloading device for plantar diabetic neuropathic ulcers because it:

Accepted Answer

Redistributes plantar pressure over the entire foot and lower leg surface

Answer

Allows daily wound inspection and easy dressing changes

Answer

Prevents infection by creating a completely sealed wound environment

Answer

Eliminates the need for surgical debridement of the ulcer

Question 2

Which classification system is most widely used to grade diabetic foot ulcers in clinical practice?

Accepted Answer

Wagner Ulcer Classification System (grades 0–5)

Answer

National Pressure Injury Advisory Panel (NPIAP) staging system

Answer

Bates-Jensen Wound Assessment Tool (BWAT)

Answer

Push Tool wound scoring system

Question 3

In a diabetic patient with suspected arterial calcification, why is the toe-brachial index (TBI) preferred over the ABI?

Accepted Answer

Digital arteries of the toes are less susceptible to calcification, providing a more accurate reading

Answer

TBI is less painful and faster to perform than ABI measurement

Answer

TBI detects venous disease more accurately in diabetic patients

Answer

ABI is contraindicated in all patients with diabetes mellitus

Question 4

Which transcutaneous oxygen pressure (TcPO2) value best indicates adequate tissue perfusion for lower extremity wound healing?

Accepted Answer

TcPO2 of 40 mmHg or greater

Answer

TcPO2 of 10 mmHg

Answer

TcPO2 of 20 mmHg

Answer

TcPO2 of 30 mmHg

Question 5

Which pathogen is most commonly isolated from infected diabetic foot ulcers?

Accepted Answer

Staphylococcus aureus (including MRSA)

Answer

Pseudomonas aeruginosa

Answer

Bacteroides fragilis

Answer

Candida albicans

Question 6

Charcot neuroarthropathy (Charcot foot) is best characterized as:

Accepted Answer

A progressive destructive arthropathy causing bone and joint deformity in neuropathic patients

Answer

A venous ulcer complication unique to patients with diabetes mellitus

Answer

A fungal osteomyelitis of the tarsal bones requiring antifungal treatment

Answer

A pressure-induced heel injury in bedridden diabetic patients

Question 7

Which factor is NOT considered a significant risk factor for lower extremity amputation in patients with diabetes?

Accepted Answer

Hemoglobin A1c of 5.8%

Answer

Peripheral neuropathy with loss of protective sensation

Answer

Peripheral arterial disease with reduced perfusion

Answer

History of a prior healed diabetic foot ulcer