ONCC Practice Test

Nurses preparing for Oncology Nursing Certification Corporation (ONCC) testing can use this page to find free practice sets, examine answer explanations, and organize their study. Start with the ONCC Oncology Certified Nurse set, then choose focused topics for further practice. The exam details below identify facts specific to OCN. Our practice content is written with AI tools and is not made up of real exam questions.

ONCC Exam at a Glance

What changed for ONCC in 2026

• Oct 24, 2026: Retake fee changed to $100 DoubleTake option (previously $100 DoubleTake option (selected at application)).^[3]
• Oct 24, 2026: Testing window changed to 90-day testing window after Authorization to Test (previously 90-day testing window after Authorization to Test (ATT)).^[1]
• Oct 24, 2026: Score release changed to Pass/fail on screen immediately; detailed report by email (previously Pass/fail on screen the same day; report follows by email).^[5]

What the ONCC is and how it works

According to Oncology Nursing Certification Corporation, “ONCC tests are administered at hundreds of PSI test sites throughout North America.”^[4]

ONCC offers certification testing, including the Oncology Certified Nurse (OCN) examination. Passing the OCN test leads to certification valid for 4 years. Keep the credential name in view when checking requirements: the OCN details here should not be assumed to describe every ONCC examination.

The OCN exam contains 165 multiple-choice questions and allows 3 hours to test. ONCC tests are computer-based and administered at PSI test centers. For OCN, the Authorization to Test opens an almost-immediate 90-day testing window. Use ONCC’s Oncology Certified Nurse page and Find a Test Center page to check the arrangements before scheduling.

ONCC’s policies state that candidates receive an official pass/fail result on screen immediately, followed by a detailed report by email. The supplied facts do not establish a passing-score threshold or eligibility requirements; consult ONCC’s credential page and policies for those details.

The listed OCN test fees are $300 for ONS or APHON members and $420 for non-members. ONCC also lists an additional $100 DoubleTake option fee. That fee alone does not establish retake eligibility or all option conditions. Read ONCC’s DoubleTake information before choosing it.

Worked examples: how to reason through ONCC questions

These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.

Example 1

Question: In Oncology Nursing Certification Corporation, what does the PDCA cycle stand for?

1. Plan, Do, Check, Act
2. Prepare, Develop, Control, Assess
3. Prioritize, Delegate, Communicate, Approve
4. Process, Design, Create, Analyze

Answer: A. Plan, Do, Check, Act

Explanation:

Plan, Do, Check, Act is correct. PDCA describes a repeating improvement process: plan a change, carry it out, check what happened, and act on the findings. The final step connects the results to the next decision, rather than leaving the work at observation alone. Prepare, Develop, Control, Assess names plausible activities but does not expand PDCA correctly. Prioritize, Delegate, Communicate, Approve describes coordination activities rather than this improvement cycle. Process, Design, Create, Analyze also substitutes unrelated terms. Remember the sequence by its purpose: decide what to change, try it, examine the results, and use what you learned to refine the process.

Example 2

Question: What is the primary objective of psychosocial support in Oncology Nursing Certification Corporation?

1. To ensure competence and proficiency in core psychosocial support concepts
2. To replace practical experience entirely
3. To limit access to the profession
4. To generate revenue for testing organizations

Answer: A. To ensure competence and proficiency in core psychosocial support concepts

Explanation:

Option A is the intended answer, but the wording needs care. Competence and proficiency describe an aim of learning psychosocial support concepts; they do not clearly describe the primary objective of providing psychosocial support itself. The explanation supplied with this question addresses practitioner knowledge, so A fits that intended meaning. Replacing practical experience entirely is wrong because knowledge does not substitute for applying skills in practice. Limiting access to the profession and generating revenue for testing organizations do not describe the educational purpose stated in the explanation. Remember to distinguish the purpose of learning a care skill from the purpose of delivering that care. Treat this item as a wording exercise rather than a precise definition of psychosocial support.

Example 3

Question: What is a key benefit of implementing performance metrics in Oncology Nursing Certification Corporation pain management?

1. Providing measurable data to track progress and inform decision-making
2. Eliminating the need for qualitative feedback
3. Reducing employee autonomy
4. Replacing strategic planning entirely

Answer: A. Providing measurable data to track progress and inform decision-making

Explanation:

Providing measurable data to track progress and inform decision-making is correct. Performance metrics make it possible to examine whether an intended improvement is occurring and identify where further attention may be needed. They support decisions rather than making those decisions automatically. Eliminating the need for qualitative feedback is wrong because measurements do not explain every aspect of an experience or result. Reducing employee autonomy is not the benefit described by the question. Replacing strategic planning entirely is wrong because data informs planning rather than removing its purpose. Remember that a metric is evidence to interpret alongside context and feedback. This question tests a general improvement principle; it does not establish a specific pain-management approach.

How to use these practice tests

Begin with ONCC’s official page for the credential you intend to pursue. Check eligibility, the current content outline, and testing policies before organizing your study. The practice-set titles below are site categories; no official content areas have been verified for this page.

Use the Oncology Certified Nurse practice set to identify questions you can explain and questions where you are guessing. For each uncertain answer, record the concept, your reasoning, and what you need to check in your study material. Review explanations critically, especially when a question uses broad wording that does not clearly describe oncology nursing care.

Choose focused practice based on those notes, using sets such as Chemotherapy Administration and Safety, Oncologic Emergencies, and Symptom Management. Explain why the alternatives are wrong before returning to the answer key.

Revisit uncertain concepts after checking the official material. Before test day, review your Authorization to Test, scheduling arrangements, and ONCC policies. Use practice results to direct further study, rather than as a prediction of your certification result.

Sources & last verified

1. Oncology Nursing Certification Corporation — number of questions, time limit, exam fee, validity (official source). “165 Multiple Choice Questions” Verified Oct 26, 2026 · source checked Oct 26, 2026.
2. Oncology Nursing Certification Corporation — exam fee (official source). “Test (final deadline only) $300 / $420” Verified Oct 24, 2026.
3. Oncology Nursing Certification Corporation — retake fee (official source). “There is an additional $100 DoubleTake option fee” Verified Oct 24, 2026.
4. Oncology Nursing Certification Corporation — delivery (official source). “ONCC tests are administered at hundreds of PSI test sites throughout North America.” Verified Oct 24, 2026.
5. Oncology Nursing Certification Corporation — score release (official source). “will receive an immediate official pass/fail result on their computer screen” Verified Oct 24, 2026.
6. Oncology Nursing Certification Corporation — testing window (official source). “ONCC will offer the ACON™ Beta examination September 28 - November 30, 2026.” Verified Oct 24, 2026.
7. Oncology Nursing Certification Corporation — registration opens (official source). “Applications for 2027 international testing are expected to open January 1, 2027.” Verified Oct 26, 2026 · source checked Oct 26, 2026.

How we verify: editorial & fact-checking policy. Report an error: contact us.