CO Study Guide 2026
Everything you need to pass the CO exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
CO exam key facts
- ABC examination passing scores are criterion-referenced and are reviewed and revised annually by expert committees. Source
- ABC permits candidates four attempts to pass each exam within a three-year eligibility period. Source
- ABC orthotist certification is renewed at the end of a five-year cycle upon meeting continuing education credit requirements. Source
📋 CO Exam Format at a Glance
📚 CO Topics to Study (22)
✍️ Sample CO Questions & Answers
1. What is the importance of continuing education for CO professionals in Pharmacology & Medication Management?
Continuing education keeps professionals current with developments and best practices while meeting certification requirements.
2. Which rivet or fastener type is most appropriate for attaching metal uprights to a leather orthotic foundation to allow articulation?
Chicago screws (sex bolts) are ideal for orthotic joints because they can be tightened to control resistance to motion and can be replaced if worn, unlike solid rivets.
3. What is the purpose of follow-up visits in orthotic care?
The purpose of follow-up visits in orthotic care is to monitor the device's performance and make adjustments as needed. Over time, a patient's condition may change, the device may wear, or the initial fit may require refinement. Regular monitoring ensures the orthosis continues to provide optimal support, comfort, and therapeutic benefit, maximizing its effectiveness.
4. How does professional liability insurance protect CO practitioners?
This insurance covers financial consequences of claims alleging negligence or mistakes in professional services.
5. What is the first step in CO risk assessment?
Risk assessment begins with systematic identification of all potential hazards, forming the foundation for all subsequent analysis.
6. Which professional typically prescribes orthotic devices?
Orthotic devices are typically prescribed by a physician, who diagnoses the condition and determines the medical necessity for an orthosis. A Certified Orthotist then plays a crucial role in designing, fabricating, fitting, and managing the orthotic device based on the physician's prescription and the patient's specific needs. This collaborative approach ensures appropriate and effective treatment.
🎯 Free CO Practice Tests
📖 CO Guides & Articles
What Practice Test Geeks adds beyond an AI chat for CO
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length CO mock exam — 200 questions in 210 minutes with a 75% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed CO question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable CO cheat sheet you can print or save as a PDF.
- CO flashcards built from the same question bank.
- Free CO practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- abcop.org — Eligibility, exam dates, fees, late registration, registration deadline, renewal, test dates, score release, score validity, retake fee · verified Oct 2026