ONCC Oncology Certified Nurse (OCN) Practice Test

139 questions available

Build your confidence for ONCC Oncology Certified Nurse (OCN). Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.

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Certification exam
165 Exam questions
Your practice
139 Practice questions
2 hours 19 minutes Practice Time
Try 5 free questions
No account needed. A free account includes 20 questions for this exam.
The bar to clear scaled score of 55 Published passing score for this certification.
Official objectives from ONCC
ONCC139 practice questions
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Exam overview and details

The Oncology Certified Nurse (OCN(R)) certification, offered by the Oncology Nursing Certification Corporation (ONCC), is the premier credential for registered nurses specializing in adult oncology care. This rigorous certification validates a nurse's specialized knowledge, clinical judgment, and commitment to excellence in the complex field of cancer nursing. Earning the OCN(R) credential demonstrates mastery across the cancer care continuum, from prevention and screening through diagnosis, treatment, survivorship, and end-of-life care. It signifies a comprehensive understanding of the scientific basis of oncology, sophisticated symptom management, and the psychosocial dimensions of cancer. Certified nurses are recognized for their ability to deliver evidence-based, patient-centered care and to effectively manage oncologic emergencies. In an evolving healthcare landscape, the OCN(R) certification serves as a benchmark for quality, safety, and professional competency, distinguishing its holders as leaders dedicated to improving outcomes for individuals and families affected by cancer.

Sample Questions

Choose an answer and explore the explanation to see how practice works.

Oncologic Emergencies

A 58-year-old male patient with stage III lung cancer presents with a serum sodium level of 118 mEq/L and confusion. The patient is on cisplatin-based chemotherapy and reports polydipsia. Which mechanism best explains the development of SIADH in this clinical context?

Care Continuum

A 58-year-old patient with newly diagnosed lung cancer asks the oncology nurse what the TNM staging system means. Which explanation best describes the TNM classification?

Treatment Modalities

During chemotherapy administration, a patient receiving doxorubicin extravasates into the surrounding tissue. Which intervention demonstrates the most appropriate application of oncology nursing knowledge regarding management of this complication?

Care Continuum

50-year-old with CRC family history asks about risk reduction

Symptom Management and Palliative Care

When assessing a patient with chemotherapy-induced peripheral neuropathy (CIPN), the oncology nurse recognizes that the pathophysiology involves mitochondrial dysfunction and oxidative stress in peripheral nerve cells. Which nursing intervention is most appropriate based on this scientific understanding?

Exam insights and study advice

Achieving the OCN(R) certification is a powerful career differentiator that signifies advanced expertise and a dedicated commitment to the oncology nursing specialty. It is widely recognized by employers, peers, and the healthcare industry as a mark of clinical excellence and professional credibility. Certification enhances career mobility, often leading to opportunities for advanced roles, leadership positions, and specialized practice areas. It validates your knowledge to patients and families, fostering trust and confidence in your care. Furthermore, many institutions recognize certified nurses through clinical ladders, salary differentials, and preferential hiring, directly linking professional achievement to tangible career advancement and recognition within the oncology community.

What this exam covers

Use the published domain weights to plan your study. Practice results do not predict your certification exam score.

01Symptom Management and Palliative Care

21%

02Care Continuum

19%

03Treatment Modalities

19%

04Oncology Nursing Practice

17%

05Oncologic Emergencies

12%

06Psychosocial Dimensions of Care

12%

Exam Details

Vendor ONCC
Passing Score scaled score of 55
Exam questions 165

Frequently Asked Questions

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How long is the OCN(R) certification valid, and what are the renewal requirements?

What is the career impact of obtaining OCN(R) certification?