10 Practice Questions to Test Your Foot Care Knowledge

10 Practice Questions to Test Your Foot Care Knowledge

A quick self-check across the domains the CFCS and CFCN exams actually test — try each one before you reveal the answer.

The best way to know if you're ready for the CFCS or CFCN exam isn't re-reading your notes — it's testing yourself against exam-style questions and seeing where the gaps are. Here are ten questions pulled from across the major domains: anatomy, assessment, common conditions, the diabetic foot, and technique. Try each one before you click to reveal the answer.

1. Which finding is the earliest and most reliable indicator of peripheral neuropathy during a routine foot assessment?

1. Absent pedal pulses
2. Loss of protective sensation on 10-gram monofilament testing
3. Visible callus formation
4. Delayed capillary refill

Answer: B. Loss of protective sensation via monofilament testing is the standard, reproducible early indicator of neuropathy. Pulses and capillary refill assess vascular status, not neurologic status — a common exam distinction.

2. A client with diabetes has a callus with a small area of dark discoloration underneath. What is the most appropriate nursing action?

1. Debride the callus and apply a moisturizing cream
2. Soak the foot to soften the tissue before debridement
3. Refer to a physician or podiatrist before any debridement
4. Document and recheck at the next scheduled visit

Answer: C. Discoloration under a callus in a diabetic client raises concern for subcutaneous hemorrhage or ulceration risk. This is a refer-before-you-treat scenario — a pattern that shows up repeatedly on both exams.

3. Which of the following is considered the gold-standard bedside test for arterial insufficiency in the lower extremity?

1. Monofilament testing
2. Ankle-brachial index (ABI)
3. Visual skin inspection
4. Tuning fork vibration test

Answer: B. ABI is the standard bedside measure of arterial blood flow. Monofilament and vibration testing assess neurologic status, not vascular status — another neuro-vs-vascular distinction worth knowing cold.

4. What is the primary difference between a corn and a callus?

1. Corns only occur on weight-bearing surfaces; calluses do not
2. Corns have a central core and occur over bony prominences; calluses are more diffuse
3. Calluses are always painful; corns are not
4. Corns are caused by fungal infection; calluses are not

Answer: B. Corns form a concentrated, cone-shaped core typically over bony prominences (like toe joints), while calluses are broader, diffuse thickenings usually on weight-bearing areas like the heel or ball of the foot.

5. During infection control between clients, which practice is essential regardless of whether instruments are disposable or reusable?

1. Wiping instruments with an alcohol pad only
2. Using the same gloves if visibly clean
3. Disinfecting all work surfaces with an EPA-registered hospital-grade disinfectant
4. Rinsing instruments with tap water between clients

Answer: C. Surface disinfection with a hospital-grade, EPA-registered product is required between every client regardless of instrument type. Alcohol wipes and tap water rinsing don't meet infection control standards for this setting.

6. A client reports numbness and tingling in both feet, worse at night. This symptom pattern is most consistent with which condition?

1. Peripheral arterial disease
2. Peripheral neuropathy
3. Onychomycosis
4. Plantar fasciitis

Answer: B. Bilateral numbness and tingling, often worse at night, is a classic peripheral neuropathy presentation — commonly diabetic in origin. Arterial disease more typically presents with pain on exertion (claudication) or at rest with positional relief.

7. Which nail condition is most important to distinguish from a fungal infection before treatment, due to its different underlying cause?

1. Onychomycosis
2. Nail psoriasis
3. Ingrown toenail
4. Subungual hematoma

Answer: B. Nail psoriasis can closely mimic fungal nail changes (thickening, discoloration, pitting) but is an autoimmune process, not an infection — treating it as fungal won't resolve it and may delay appropriate referral.

8. What is the recommended technique for trimming toenails in a client with diabetes to reduce injury risk?

1. Cut nails in a deep curve following the nail bed
2. Cut nails straight across with slightly rounded corners
3. Cut nails as short as possible at the nail bed
4. Avoid trimming and only file nails

Answer: B. Straight-across trimming with gently rounded corners reduces the risk of ingrown nails and skin trauma — both significant concerns in diabetic and vascular clients where minor injuries can become serious.

9. A client's foot shows a well-defined, punched-out ulcer over a pressure point with surrounding callus, and the client reports minimal pain. This presentation is most typical of which ulcer type?

1. Venous ulcer
2. Arterial ulcer
3. Neuropathic (diabetic) ulcer
4. Pressure ulcer from immobility

Answer: C. Neuropathic ulcers classically appear over pressure points, are surrounded by callus, and are painless due to underlying sensory loss — the painlessness itself is a key diagnostic clue tested on both exams.

10. When should a foot care nurse refer a client to a podiatrist or physician rather than proceed with routine care?

1. Only when the client specifically requests a referral
2. When findings fall outside routine, non-diagnostic nursing scope — such as suspected infection, ulceration, or critical ischemia
3. Only after completing the scheduled visit in full
4. Referral is not part of a foot care nurse's role

Answer: B. Recognizing the boundary of nursing scope and referring appropriately is one of the most heavily tested judgment areas on both exams — it's not just a clinical skill, it's a safety and liability issue in independent practice.

How many did you get right?

These ten are just a sample. The full CFCS & CFCN Study Guide includes all 44 practice questions with a complete answer key, organized across all ten clinical domains — plus comparison tables, a glossary, and a four-week study plan.

Get the Full Study Guide

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This article is general information from an independent foot care nursing practice and is not affiliated with, authorized by, or endorsed by the AFCNA or the WOCNCB. CFCS® and CFCN® are trademarks of their respective owners. These questions are for self-study purposes and do not represent actual exam content from either certifying board.