100+ Free CPOA Practice Questions

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A solid ankle AFO restricts motion in which direction?

Only inversion

Only plantarflexion

Both dorsiflexion and plantarflexion

Only dorsiflexion

to track

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2026 Statistics

Key Facts: CPOA Exam

330

Total Items

165 COA + 165 CPA

~$615

Total Cost

$135 app + $240 × 2 exams

1,000 hrs

Clinical Required

≥250 in each discipline

BOTH

Exams Pass

COA + CPA both required

ABC CPOA is the dual-discipline assistant credential — pass BOTH 165-item COA and CPA exams. 1,000 clinical hours total (≥250 each discipline). Master orthotic content (AFO/KAFO/TLSO/cervical) AND prosthetic content (TT/TF amputation, K-levels, sockets, microprocessor knees) plus shared biomechanics, materials, and ABC ethics/scope.

Sample CPOA Practice Questions

Try these sample questions to test your CPOA exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What percentage of the gait cycle is spent in stance phase during normal walking?

A.40%

B.50%

C.60%

D.70%

Explanation: Normal gait cycle consists of approximately 60% stance phase and 40% swing phase. This ratio shifts with increased walking speed.

2Which gait phase begins the moment the heel contacts the ground?

A.Initial contact

B.Mid-stance

C.Pre-swing

D.Terminal swing

Explanation: Initial contact (heel strike) is the first phase of the gait cycle when the heel first touches the ground.

3Which plane of motion divides the body into right and left halves?

A.Frontal

B.Sagittal

C.Transverse

D.Coronal

Explanation: The sagittal plane divides the body into right and left halves and contains flexion/extension movements.

4Dorsiflexion of the ankle occurs in which plane of motion?

A.Frontal

B.Sagittal

C.Transverse

D.Oblique

Explanation: Dorsiflexion and plantarflexion both occur in the sagittal plane around a frontal (medial-lateral) axis.

5Which muscle group is primarily responsible for dorsiflexion of the foot?

A.Gastrocnemius and soleus

B.Tibialis anterior

C.Peroneus longus

D.Posterior tibialis

Explanation: The tibialis anterior is the primary dorsiflexor of the foot. Weakness causes drop foot, often requiring an AFO.

6Which gait phase requires the greatest knee flexion?

A.Initial contact

B.Mid-stance

C.Mid-swing

D.Terminal swing

Explanation: Maximum knee flexion (about 60 degrees) occurs during mid-swing to allow toe clearance.

7What is the term for the period when both feet are in contact with the ground?

A.Single limb support

B.Double limb support

C.Stance phase

D.Mid-stance

Explanation: Double limb support occurs twice per gait cycle, totaling about 20% of the cycle, and decreases with faster walking.

8Which term describes movement of a limb away from the midline of the body?

A.Adduction

B.Abduction

C.Flexion

D.Pronation

Explanation: Abduction moves a body part away from the midline; adduction moves it toward the midline.

9The center of gravity in a standing adult is located approximately at which level?

A.T12

B.L2

C.S2

D.L5

Explanation: The center of gravity in a standing adult lies at approximately S2, anterior to the second sacral vertebra.

10Which structure is the primary weight-bearing surface of the foot during heel strike?

A.Metatarsal heads

B.Calcaneus

C.Talus

D.Cuboid

Explanation: The calcaneus (heel bone) is the primary weight-bearing surface during heel strike (initial contact).

About the CPOA Exam

ABC dual-discipline assistant-level credential — combines COA + CPA. Awarded after passing BOTH the Orthotic Assistant exam and the Prosthetic Assistant exam (165 items each, 330 total). Eligibility requires 1,000 supervised clinical hours total with at least 250 in each discipline. Covers shared anatomy/biomechanics, orthotic content (AFO, KAFO, TLSO, cervical), prosthetic content (sockets, suspension, knees, feet), shared materials/fabrication, and dual-discipline pathology.

Questions

330 scored questions

Time Limit

3 hours each (2 exams)

Passing Score

Scaled (ABC-set) on BOTH exams

Exam Fee

$240 each exam (ABC)

CPOA Exam Content Outline

30%

Orthotic Content

AFO/KAFO/HKAFO, TLSO/scoliosis bracing, cervical orthoses (Philadelphia, Halo), pediatric (Pavlik)

30%

Prosthetic Content

Amputation levels, K-levels, sockets, suspension, knees, feet, alignment

20%

Shared Anatomy & Biomechanics

Gait cycle, anatomy, planes of motion, ground reaction force

10%

Shared Materials & Fabrication

Polypropylene, carbon fiber, lamination, foams, plaster modification

Pathology & Conditions

CVA, SCI, amputation etiologies (vascular/trauma/cancer), peds

Ethics & Practice

ABC ethics, dual-discipline scope, HIPAA, SOAP documentation

How to Pass the CPOA Exam

What You Need to Know

Passing score: Scaled (ABC-set) on BOTH exams
Exam length: 330 questions
Time limit: 3 hours each (2 exams)
Exam fee: $240 each exam

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CPOA Study Tips from Top Performers

1Treat as TWO separate exams — sit them sequentially with focused study between

2Use COA + CPA prep materials in parallel; share biomechanics/anatomy review

3Master the 5 phases of stance + 3 phases of swing — applies to both orthotic and prosthetic gait

4Drill K-levels (prosthetic) AND scoliosis bracing (orthotic) — both heavily tested

5Apply ABC ethics: dual-discipline scope still requires CO/CP/CPO supervision

Frequently Asked Questions

How is the CPOA awarded?

CPOA is granted after passing BOTH the COA exam AND the CPA exam (165 items each, separate sittings). Eligibility requires 1,000 total supervised clinical hours with at least 250 hours in each discipline (orthotics and prosthetics). The two exams may be taken in any order; both must be passed within the application window.

Does CPOA cost more than COA or CPA alone?

Yes — you pay TWO exam fees ($240 × 2 = $480) plus the application fee ($135). The dual credential demonstrates competency across both disciplines and is preferred by employers seeking versatile assistant-level practitioners. Total typically ~$615 in exam fees plus annual ABC membership and CE costs.

What is the scope of a CPOA?

A CPOA works UNDER an ABC-certified Orthotist, Prosthetist, or Prosthetist-Orthotist (CO/CP/CPO). They assist with patient assessment, fitting, modifications, and education for both orthoses AND prostheses. They do NOT independently prescribe or design custom devices. The dual scope makes them valuable in O&P clinics offering both services.

How should I study for ABC CPOA?

Plan 120-200 hours over 16-24 weeks for both exams combined. Use COA + CPA materials in parallel. Focus weighted study on the 60% of content covering distinct orthotic + prosthetic technical knowledge (KAFOs, TLSOs, sockets, knees) and 20% shared biomechanics. Sit the discipline you feel weakest in first — ABC retake policy allows targeted re-study.