COF Cheat Sheet 2026

The 30 highest-yield COF facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. In a patient with L3–L4 spinal cord injury, which orthotic option best facilitates community ambulation? → Bilateral KAFOs
2. In Patient Assessment & Measurement, what is the FIRST step a COF professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
3. What material property is MOST critical when selecting thermoplastic materials for pediatric orthoses compared to adult orthoses? → Low-temperature formability to facilitate frequent remolding as the child grows
4. How can a COF demonstrate professionalism? → Respecting and listening to patient needs
5. In Lower Extremity Orthotics, what is the FIRST step a COF professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
6. What is the primary role of ligaments? → Connect bones to bones
7. Which neuromuscular condition is characterized by progressive proximal muscle weakness and is most commonly managed with KAFOs to maintain ambulation? → Duchenne muscular dystrophy
8. What is the primary function of the skeletal system? → Support and protect the body
9. Metatarsus adductus in an infant is BEST described as: → Adduction of the forefoot relative to a normally aligned hindfoot
10. What is one goal of orthotic fitting? → Improve function and support
11. What is the function of synovial fluid? → Lubricate joints
12. What is the most important step before fitting any orthotic device? → Conduct a thorough patient assessment
13. Which method improves patient compliance? → Written and verbal instructions
14. What is the function of a steel shank in therapeutic footwear? → Limit forefoot flexion and reduce stress on the metatarsals during propulsion
15. When a conflict arises between standard procedures and a unique situation in Materials & Fabrication Basics, what should a COF professional prioritize? → Safety and ethical obligations while seeking expert consultation
16. What is the PRIMARY purpose of continuing education requirements in Materials & Fabrication Basics for COF professionals? → Maintaining current knowledge and competency as the field evolves
17. When managing a patient with acute phase Charcot foot, the most appropriate orthotic intervention is: → Total contact cast or Charcot Restraint Orthotic Walker (CROW)
18. What is one way a COF can stay up to date with compliance? → Attend continuing education programs
19. Why is it important to educate patients on the use of orthotic devices? → To increase patient comfort and compliance
20. A stroke patient with spastic hemiplegia develops genu recurvatum (knee hyperextension) during stance. The most appropriate AFO modification is: → Set the ankle trim line in slight dorsiflexion
21. Which orthosis is the primary treatment for foot drop caused by peroneal nerve palsy? → Solid ankle AFO or articulated AFO with dorsiflexion assist
22. In Fitting & Adjustment Techniques, what is the FIRST step a COF professional should take when encountering a new case or situation? → Conduct a comprehensive assessment and gather all relevant information
23. Which consideration is UNIQUE to pediatric orthotic fitting and does NOT apply in adult orthotic care? → Frequent size adjustments and device replacement due to ongoing skeletal growth
24. Which casting technique is considered the gold standard for capturing subtalar neutral position when fabricating custom pediatric foot orthoses? → Non-weight-bearing neutral suspension casting
25. What is the correct action if an orthotic device causes redness or discomfort? → Discontinue use and inspect the fit
26. A rocker-bottom shoe modification is used primarily to: → Reduce pressure on the metatarsal heads and forefoot during propulsion
27. What is the primary goal of therapeutic footwear for diabetic patients? → Reduce pressure points and prevent ulceration
28. In the United States, which system is used to clinically describe and bill for the type and level of a lower limb orthosis? → HCPCS L-codes with anatomical joint descriptors (e.g., AFO, KAFO)
29. What is the PRIMARY purpose of continuing education requirements in Fitting & Adjustment Techniques for COF professionals? → Maintaining current knowledge and competency as the field evolves
30. Which situation would be a breach of ethical conduct? → Discussing patient cases in public