- The 2026 CBCN exam has 165 questions (125 scored, 40 pretest) in a three-hour, no-break session.
- Passing score is 55 on ONCC's 25-75 scale - not a raw percentage.
- Treatment Modalities and Considerations and Nursing Practice each carry 24%, the two largest domains.
- Fees run $300 (ONS/APHON members) or $420 (nonmembers), plus a $75 international surcharge if applicable.
Quick Facts at a Glance
This cheat sheet exists for one reason: when exam week arrives, you shouldn't have to dig through a dozen bookmarked pages to remember how many questions are on the test or what score you actually need. Below is the condensed, no-fluff version of everything ONCC publishes about the Certified Breast Care Nurse exam for 2026, organized so you can scan it the morning of your test or the night before you register.
| Item | Detail |
|---|---|
| Certifying body | Oncology Nursing Certification Corporation (ONCC) |
| Delivery | Computer-based testing through PSI |
| Total questions | 165 (125 scored, 40 pretest), four-option multiple choice |
| Time allotted | 3 hours, no scheduled break |
| Passing score | 55 on ONCC's 25-75 scale |
| Blueprint basis | 2024 role delineation study |
| Certification validity | 4 years |
If any of these numbers surprise you, it's worth backing up and reading a full walkthrough before you commit to a test date. The CBCN Study Guide 2026 covers how these facts should shape your prep timeline, and the CBCN difficulty guide explains why the three-hour, no-break format catches some candidates off guard.
Domain Breakdown Cheat Sheet
Five domains make up the CBCN blueprint. Two of them are tied for the largest share of the exam, which should directly shape how you allocate study time. Here's the weighting, from smallest to largest, with the core content each one covers.
Domain 5: Psychosocial Dimensions of Care (12%)
The smallest domain but far from skippable - it covers body image, sexuality, family dynamics, survivorship transitions, and coping mechanisms across the breast cancer trajectory.
- Grief, anxiety, and depression screening in breast cancer patients
- Support resources and referral pathways
- Cultural and socioeconomic factors affecting care decisions
Domain 1: Care Continuum (19%)
Spans prevention, risk assessment, screening, and survivorship - essentially everything before and after active treatment.
- Risk stratification models and genetic counseling triggers
- Screening guidelines and follow-up scheduling
- Survivorship care planning
Domain 2: Diagnosis and Staging (21%)
Covers imaging interpretation basics, biopsy procedures, pathology reports, and staging systems nurses must translate for patients.
- Biopsy types and post-procedure nursing care
- Receptor status and its clinical implications
- TNM staging fundamentals
Domain 3: Treatment Modalities and Considerations (24%)
Tied for the largest domain. Includes surgical, radiation, systemic, and reconstructive treatment options plus the nursing considerations around each.
- Surgical options and pre/post-operative care
- Systemic therapy classes and associated side-effect management
- Radiation therapy planning and skin care
Domain 4: Nursing Practice (24%)
Also tied for the largest domain. Focuses on symptom management, patient education, care coordination, and evidence-based practice application.
- Symptom management protocols across treatment phases
- Patient and family education strategies
- Interdisciplinary coordination and documentation standards
Because Treatment Modalities and Considerations and Nursing Practice each represent nearly a quarter of the scored questions, together they account for almost half the exam. Under-preparing on either one is the single most common reason candidates feel blindsided on test day. For a deeper walkthrough of each domain with sample topic lists, see the CBCN Exam Domains Guide.
Key Takeaway
Split your final review sessions so Treatment Modalities and Considerations and Nursing Practice each get roughly the same amount of time - and more than any other domain.
Registration, Fees & Logistics
The fee structure is straightforward but has a few moving parts worth double-checking before you submit payment.
- ONS/APHON member fee: $300
- Nonmember fee: $420
- International surcharge: $75, if testing outside the standard domestic network
- Optional DoubleTake: $100, an ONCC add-on some candidates choose for extra assurance
Membership in ONS or APHON pays for itself quickly if you're already active in oncology nursing organizations, so check your membership status before you register. For the complete cost breakdown, including how these fees compare across candidate types, read CBCN Certification Cost 2026. If you're still mapping out when to sit for the exam relative to testing windows, the CBCN Exam Dates guide lays out scheduling considerations.
Exam Day Mechanics
Knowing the content is half the battle; knowing the mechanics of test day removes avoidable stress.
- Format: 165 four-option multiple-choice questions - 125 scored, 40 unscored pretest items mixed in indistinguishably.
- Time: Three hours total, with no scheduled break. Plan your pacing accordingly.
- Calculators: Personal calculators are prohibited. A four-function calculator is built directly into the PSI testing platform.
- Results: Your pass/fail outcome appears on screen immediately after you finish, and official results are emailed within one hour.
Because pretest items are unmarked, you can't skip questions based on a hunch that they "don't count." Treat every item as scored. The CBCN Passing Score guide breaks down exactly how the 25-75 scale translates to the 55 threshold, which is worth understanding fully rather than guessing at on exam day.
Key Takeaway
With no scheduled break across three hours, practice full-length timed sets in one sitting so your focus doesn't fade in the final 30 minutes.
Eligibility Snapshot
Before you register, confirm you meet all four eligibility pillars ONCC requires:
- An active, unencumbered RN license
- 24 months of RN experience within the prior 48 months
- 2,000 hours of breast care nursing practice within the prior 48 months
- 10 contact hours of breast care nursing education within the prior 36 months
These windows matter - hours or education completed outside the 48-month or 36-month lookback periods don't count toward eligibility. If you're unsure whether your current role or CE credits qualify, the CBCN Requirements guide walks through each pillar with more context, and CBCN Training resources can help close any education gaps before you apply.
Renewal at a Glance
Certification is valid for four years. ONCC offers three renewal pathways, so pick whichever fits your continuing education habits:
- Practice hours + professional development points
- Practice hours + retesting
- Professional development points + retesting
Mapping out your renewal pathway early - even before you sit for the initial exam - can save you from a scramble in year three or four. This is also a good moment to revisit whether the credential's value to your career justifies the ongoing renewal effort; the CBCN Salary Guide and worth-it analysis both address this from different angles.
Last-Week Review Plan
In the final stretch before your test date, resist the urge to start new material. Instead, use a compressed review structure that mirrors the exam's actual weighting.
Treatment Modalities and Nursing Practice
- Re-review surgical, systemic, and radiation therapy nursing considerations
- Drill symptom management and patient education scenarios
Diagnosis and Staging + Care Continuum
- Refresh staging systems, receptor status implications, and screening guidelines
- Review risk assessment and survivorship care planning
Psychosocial Dimensions + Weak Spots
- Cover psychosocial content once, thoroughly
- Revisit any domain where practice scores lagged
Light Review Only
- Skim this cheat sheet and your own notes
- Confirm testing center or online proctoring logistics with PSI
This structure intentionally front-loads the two 24%-weighted domains because they carry the most scoring impact. If you want a fuller multi-week version of this approach built around your actual start date, the CBCN Study Guide 2026 extends this same logic across a longer timeline. And if you're still deciding whether your current knowledge base is exam-ready, running timed practice questions on the CBCN practice test platform is the fastest way to find out where the gaps actually are.
Frequently Asked Questions
The exam has 165 total questions: 125 are scored and 40 are unscored pretest items. All are four-option multiple choice, and since pretest items aren't identified, you should treat every question as if it counts.
You need a scaled score of 55 on ONCC's 25-75 scale, not a specific number of correct answers out of 165. See the CBCN Passing Score guide for a full explanation of how this scale works.
Treatment Modalities and Considerations and Nursing Practice are tied as the largest domains at 24% each, together covering nearly half the exam. Prioritize those two before moving to Diagnosis and Staging (21%), Care Continuum (19%), and Psychosocial Dimensions of Care (12%).
It's $300 for ONS or APHON members and $420 for nonmembers, plus a $75 international surcharge if applicable and an optional $100 DoubleTake add-on. Full pricing details are in the CBCN Certification Cost breakdown.
Personal calculators are not allowed, but the PSI testing platform includes a built-in four-function calculator you can access during the exam.
Certification lasts four years. You can renew through practice hours plus professional development points, practice hours plus retesting, or professional development points plus retesting.