Free OPC Prosthetics Written Certification Examination Practice Questions

Sample Practice Questions

Try these 10 sample questions from the OPC Prosthetics Written Certification Examination practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1During consent discussions, an adult with a hearing impairment accurately explains the proposed socket treatment and its likely consequences. How should the prosthetist approach capacity?

   1. A.Assess capacity from understanding and appreciation of the treatment decision.Correct answer: A
   2. B.Assign decision-making to a relative because hearing is impaired.
   3. C.Assign decision-making to the referrer because communication requires adaptation.
   4. D.Assess capacity from whether the patient accepts the recommended treatment.

   Explanation: The standard requires the person to "understand the information that is relevant to making a decision about the treatment" and "appreciate the reasonably foreseeable consequences". The patient demonstrates these abilities; hearing impairment alone does not transfer the decision.

   Reference: OPC Standards of Practice — Standard 9, Incapacity, p.15

2. 2During a fitting visit, a previously warm residual limb is now distinctly cold. What is the appropriate priority?

   1. A.Arrange routine physical therapy for progressive muscle conditioning.
   2. B.Arrange a scheduled prosthetic review for gradual volume reduction.
   3. C.Arrange an elective orthopaedic review for chronic bony discomfort.
   4. D.Arrange immediate medical evaluation for possible impaired circulation.Correct answer: D

   Explanation: The source states, "The residual limb feels cold (indicating decreased circulation)." A newly cold limb requires prompt medical assessment, rather than treating it as a routine alignment or cosmetic issue.

   Reference: Merck Manual Professional: Skin Care of the Residual Limb — Skin infection, indications for immediate evaluation

3. 3When teaching elastic wrapping of a healing residual limb, which pressure pattern supports edema control?

   1. A.Pressure decreasing from distal to proximal.Correct answer: A
   2. B.Pressure increasing from distal to proximal.
   3. C.Pressure concentrated in a narrow proximal band.
   4. D.Pressure concentrated in a narrow distal band.

   Explanation: The reference specifies "a proper distal-to-proximal pressure gradient". Compression should favour distal control and proximal return rather than a reversed gradient or localized constricting band.

   Reference: Atlas of Limb Prosthetics, Chapter 23 — Residual-Limb Wrapping

4. 4At follow-up, the prosthetist needs the patient's own assessment of the prosthesis rather than an instrumented gait result. Which finding is patient-reported feedback?

   1. A.A rating of comfort during daily wear.Correct answer: A
   2. B.A measurement of prosthetic pylon length.
   3. C.A measurement of peak ground reaction force.
   4. D.A measurement of socket contact pressure.

   Explanation: The outline includes "comfort, perceived benefits and/or detriments" in patient feedback. A comfort rating is patient reported; the dimensional and instrumented measurements are objective findings.

   Reference: OPC Certification Examination Handbook — Appendix 2, 0401, p.31

5. 5An OPC credential holder becomes aware of a possible Code violation. Under the Canons' Consumer Protection requirement, what is the latest reporting interval measured from receipt of that knowledge?

   1. A.21 days
   2. B.30 daysCorrect answer: B
   3. C.90 days
   4. D.10 days

   Explanation: The source states, "within 30 days of the date of his/her/its" The reporting obligation is within 30 days of knowledge of a possible Code violation; it does not require waiting for a completed investigation.

   Reference: OPC Canons of Ethical Conduct — Section 4.09, pp.10–11

6. 6An OPC prosthetist proposes a substantially different treatment option after the patient's condition changes. What consent step is appropriate before proceeding?

   1. A.Obtain consent again for the changed treatment option.Correct answer: A
   2. B.Use the original consent because the original referral remains on file.
   3. C.Obtain the funding agency's approval as the replacement for patient consent.
   4. D.Use the original consent because the same clinician remains responsible.

   Explanation: The source states, "consent should be obtained again." The source applies this requirement when the condition significantly changes or a different treatment option is proposed.

   Reference: OPC Standards of Practice — Standard 9, Communication, p.15

7. 7A transtibial user has a bone spur that prevents satisfactory fitting despite appropriate socket accommodation. Which professional should assess possible surgical correction?

   1. A.Occupational therapist
   2. B.Prosthetic technician
   3. C.PhysicianCorrect answer: C
   4. D.Physiotherapist

   Explanation: The source states, "brought to the attention of the physician for possible surgical correction." Persistent bony fitting problems may require surgical assessment. Strengthening, alignment and lamination do not remove a bone spur.

   Reference: Atlas of Limb Prosthetics, Chapter 18B — Condition of Bony Anatomy

8. 8A transtibial amputee spends prolonged periods in a wheelchair during preparation for prosthetic use. Which support helps reduce knee-flexion contracture risk?

   1. A.A cushion beneath the knee maintaining knee flexion.
   2. B.A sling beneath the calf maintaining knee flexion.
   3. C.A lowered footrest maintaining knee flexion.
   4. D.A residual-limb board maintaining knee extension.Correct answer: D

   Explanation: The source states, "A stump board will help maintain knee extension when using a wheelchair." Prolonged knee flexion should be avoided; the board supports extension during seated periods.

   Reference: Atlas of Limb Prosthetics, Chapter 23 — Preprosthetic Exercise, Range of Motion

9. 9A user is being assessed for a replacement prosthesis after years with the current device. What information from the current user's experience should inform the replacement discussion?

   1. A.The manufacturer's expected service life of the current prosthesis.
   2. B.The technician's fabrication time for the current prosthesis.
   3. C.The supplier's standard repair charges for the current prosthesis.
   4. D.The patient's likes and dislikes about the current prosthesis.Correct answer: D

   Explanation: The source states, "what he likes or dislikes about the present prosthesis." The patient's experience can reveal problems to avoid and useful features to preserve; stock and promotional information do not substitute for that feedback.

   Reference: Atlas of Limb Prosthetics, Chapter 18B — Prescription, Previous Prosthesis

10. 10When assigning employee access to patient information, which approach best follows OPC's patient-record safeguard?

    1. A.Give identical record access to everyone once an employment agreement is signed.
    2. B.Base access solely on length of employment rather than assigned responsibilities.
    3. C.Limit access to information relevant to each employee's treatment or billing work when possible.Correct answer: C
    4. D.Give identical record access to everyone once privacy training is completed.

    Explanation: The source states, "Information access by employees is limited to information that is relevant to their portion of the treatment delivery or billing when possible." Access should follow duties and relevant information needs, rather than employment alone. Written task0502 expressly includes patient information protection.

    Reference: OPC Standards of Practice — Standard 7, Patient Records, indicator 4, p.10