This OCN cheat sheet compresses the ONCC Oncology Certified Nurse exam into a printable quick reference to the facts examiners test hardest. It's a premium cheat sheet built by Capital Prep — the one premium prep we trust — and it's yours free. Back it with the rest of your free OCN toolkit: the practice test, study guide, and flashcards.
OCN exam at a glance
- Items: 165 multiple-choice (145 scored + 20 unscored pretest)
- Time: 3 hours (180 minutes)
- Passing standard: Scaled score of 55 (ONCC standard-set; reported pass/fail)
- Cost: ≈ $300 ONS/APHON member, $420 non-member (2023 anchor — verify on oncc.org)
- Certifying body: Oncology Nursing Certification Corporation (ONCC)
What’s on the OCN cheat sheet
- Symptom Management and Supportive Care (25%) — myelosuppression and nadir, CINV, mucositis, pain and neuropathy, vascular access, and nutrition — the largest domain.
- Treatment Modalities (20%) — chemotherapy classes and signature toxicities, targeted/immuno/hormonal therapy, radiation safety, transplant, and oral agents.
- Oncologic Emergencies (16%) — tumor lysis, hypercalcemia, SIADH, SVC syndrome, cord compression, febrile neutropenia, sepsis, DIC — and the first nursing action.
- Oncology Nursing Practice (15%) — carcinogenesis, genomics and clinical trials, TNM staging vs grade, and USP <800> safe handling.
- Care Continuum (14%) — prevention and screening, risk factors, navigation, survivorship, and palliative vs hospice care.
- Psychosocial Dimensions of Care (10%) — distress screening, coping and communication (SPIKES), body image, sexuality, and cultural and financial concerns.
How to use it in your final week
- Own the two heaviest domains first — Symptom Management and Supportive Care (25%) and Treatment Modalities (20%) are nearly half the exam, so drill chemo classes and their toxicities before anything else.
- Turn the oncologic-emergency block into reflexes: for each emergency (TLS, SVC syndrome, cord compression, febrile neutropenia) know the recognize-then-act first move, since the OCN rewards priority actions over background facts.
- Memorize the safety absolutes — vinca alkaloids are NEVER intrathecal, febrile neutropenia gets cultures then antibiotics within one hour, and brachytherapy patients need time, distance, and shielding.
- Pair each review pass with a short timed question set so your pacing for 165 items in 3 hours (about 65 seconds each) stays comfortable.
The cheat sheet is your review layer — your OCN practice test drives the exam-readiness ring at the top of this page. Download it, review, then take a full practice exam (or drill with the study guide and flashcards) to see where you stand.
OCN cheat sheet FAQ
Yes — the OCN cheat sheet downloads as a PDF with no sign-up and no payment. It sits alongside Career Employer's free OCN practice test, study guide, and flashcards, so your whole review stack is free.
The condensed high-yield facts the ONCC Oncology Certified Nurse exam leans on: chemotherapy classes and their signature toxicities, the oncologic emergencies and their first actions, myelosuppression and nadir rules, radiation-safety principles, and staging/grading basics — grouped by the six 2026 ONCC content domains.
It's built from the 2026 ONCC OCN Test Content Outline, which raised Symptom Management and Supportive Care to 25% and reorganized the domains. We check it against ONCC's published outline and registration manual.
No — it's a fast review and last-week cram layer, not a substitute for working questions across all six domains. Use it to lock in the chemo toxicities and emergency algorithms, then confirm your readiness with full practice questions.
Tap the download button or the preview card near the top of this page and the PDF opens instantly. Bookmark the page so you can pull it up in the days before your ONCC appointment.
References
- 1.Oncology Nursing Certification Corporation. “Oncology Certified Nurse (OCN).” ONCC, 2026. ↑
- 2.Oncology Nursing Certification Corporation. “2026 OCN Test Content Outline.” ONCC, 2026. ↑
- 3.Oncology Nursing Certification Corporation. “2026 ONCC Test Registration Manual.” ONCC, 2026. ↑
- 4.National Cancer Institute (NCI). “Cancer Staging, Treatment Types & Side Effects.” cancer.gov, 2026. ↑
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