PC Diabetic Foot Care & Wound Management 3

Question 1

Which vascular test provides a non-invasive assessment of forefoot perfusion and is particularly useful when ABI is falsely elevated due to arterial calcification in diabetics?

Accepted Answer

Toe-brachial index (TBI)

Answer

Doppler waveform analysis

Answer

Transcutaneous oxygen pressure (TcPO2)

Answer

Plethysmography

Question 2

A patient with a chronic non-healing diabetic foot ulcer has a transcutaneous oxygen pressure (TcPO2) of 25 mmHg. How should the podiatrist interpret this result?

Accepted Answer

Borderline perfusion; consider adjunctive hyperbaric oxygen therapy

Answer

Adequate perfusion; wound expected to heal with standard care

Answer

Critical ischemia; wound unlikely to heal without vascular intervention

Answer

Normal perfusion; no further vascular workup needed

Question 3

Which antimicrobial agent is most appropriate for empiric treatment of a mild, non-limb-threatening diabetic foot infection in a patient with no prior MRSA history?

Accepted Answer

Amoxicillin-clavulanate (Augmentin)

Answer

Vancomycin IV

Answer

Piperacillin-tazobactam IV

Answer

Clindamycin alone

Question 4

Negative pressure wound therapy (NPWT) is contraindicated in which of the following clinical scenarios involving a diabetic foot wound?

Accepted Answer

Wound with exposed untreated osteomyelitis

Answer

Venous insufficiency ulcer with moderate exudate

Answer

Post-surgical wound dehiscence without infection

Answer

Partial-thickness wound with good granulation tissue

Question 5

What is the recommended duration of antibiotic therapy for diabetic foot osteomyelitis when surgical resection of infected bone is performed?

Accepted Answer

2–4 weeks post-operatively

Answer

3–5 days post-operatively

Answer

6–12 weeks total

Answer

Indefinite suppressive therapy

Question 6

Which foot deformity in diabetic patients creates the highest risk for plantar ulceration due to concentrated pressure under the metatarsal heads?

Accepted Answer

Charcot foot with rocker-bottom deformity

Answer

Hallux valgus (bunion)

Answer

Hammer toe deformity

Answer

Flatfoot (pes planus)

Question 7

According to the International Working Group on the Diabetic Foot (IWGDF), what is the recommended frequency of preventive foot examinations for a high-risk diabetic patient with peripheral neuropathy and a prior ulcer history?

Accepted Answer

Every 1–3 months

Answer

Annually

Answer

Every 6 months

Answer

Every 2 weeks