OCN Oncology Certified Nurse (ONS) Practice Test
Oncology nursing certification covering cancer treatment, symptom management, chemotherapy administration, and patient education for oncology nurses. Administered by Oncology Nursing Certification Corporation. Key domains include Symptom Management and Palliative Care, Treatment Modalities (Chemo/Radiation/Biotherapy/Immunotherapy/Surgery/HSCT), Disease-Specific (Solid Tumors, Hematologic) and Oncologic Emergencies.
Sample Questions
Try a few questions to see what the full exam is like.
83 of 140 answers carry a checkable reference.
Intrathecal MTX ALL:
A 58-year-old patient with metastatic lung cancer reports severe pain that is inadequately controlled with current oral morphine dosing. The nurse is preparing to discuss pain management options with the oncology team. Which intervention represents the most appropriate next step in this patient's analgesic therapy?
A 62-year-old patient with metastatic non-small cell lung cancer starts pembrolizumab after tumor testing shows PD-L1 expression of 80% and no actionable EGFR or ALK alteration. Six weeks later the patient reports 8 watery stools per day, cramping, and lightheadedness. The patient asks whether to take loperamide and come for the next infusion. Which nursing response best matches current immune checkpoint inhibitor toxicity management?
During report, a nurse learns that a 45-year-old patient with breast cancer developed sudden chest pain, dyspnea, and hypotension 2 hours after central venous catheter placement. The patient has elevated D-dimer and decreased oxygen saturation. Which oncology emergency should the nurse prioritize in the differential diagnosis?
Grade 3 poorly differentiated:
Why This Certification Opens Doors
In the complex and rapidly evolving field of oncology, specialized knowledge directly impacts patient safety, outcomes, and quality of life. The OCN credential signifies that a nurse possesses the validated expertise to manage intricate treatment regimens, recognize and intervene for serious side effects, provide nuanced symptom management, and deliver compassionate, patient-centered care across the cancer continuum. This certification matters because it assures patients and families they are being cared for by a nurse with proven competency, and it provides healthcare institutions with a reliable standard for staffing specialized units, ultimately contributing to safer, more effective cancer care delivery.
Exam Blueprint
Each domain is weighted to match the real certification exam, so a full practice simulation predicts your result.