OCN Exam FAQ: Short Answers With Sources
Published 2026-10-31 · Facts and text checked 2026-10-16 · Questions from our OCN study guide · Reviewed by Hana N., Quality Reviewer
Short answers to the questions OCN candidates ask most: number of questions, time, passing score, fees, content areas, retakes and drug names. Each answer comes from ONCC pages and the 2026 OCN test content outline, checked in October 2026, with the source in the facts table. Confirm with ONCC before you apply.
How many questions are on the OCN exam?
165 multiple-choice questions with four options: 145 are scored and 20 are unscored (ONCC).
How long is the OCN exam?
3 hours, which includes a 15-minute tutorial and a post-test survey (ONCC).
What is the passing score for the OCN?
A scaled score of 55 on a scale from 25 to 75. It is not a percentage: the raw number of correct answers needed varies by test form and is not published (ONCC 2026 Test Registration Manual).
How much does the OCN exam cost?
$420 for nonmembers and $300 for ONS or APHON members (ONCC). Fees can change, so check ONCC before you apply.
What is on the OCN exam?
Six weighted areas from the 2026 Test Content Outline: Care Continuum 14%, Oncology Nursing Practice 15%, Treatment Modalities 20%, Symptom Management and Supportive Care 25%, Oncologic Emergencies 16% and Psychosocial Dimensions of Care 10%.
Can I retake the OCN exam?
Yes, once your current 90-day test window has expired; the same test cannot be taken more than once per window. After three failed attempts within three years you must wait one year. ONCC DoubleTake, bought with the first application, covers a second attempt applied for within 180 days.
Does the OCN exam use brand or generic drug names?
Only generic drug names are used on ONCC tests, including the OCN exam, according to ONCC.
How long is OCN certification valid?
OCN certification is valid for four years after you pass the exam, according to ONCC.
Want the full OCN preparation?
These questions come from our OCN study guide: full-length practice tests with every answer explained, flashcards, an AI study tutor and the audiobook.