Advanced Oncology Certified Nurse Practitioner (AOCNP) Certification Practice Test 2026 - Free AOCNP Practice Questions and Study Guide

The significance of the CA-125 blood test lies in its role as a biomarker specifically associated with ovarian cancer. CA-125 is a protein that is often found at elevated levels in the blood of women with ovarian cancer, making it valuable for monitoring the disease, assessing treatment response, and detecting recurrence. While it is not exclusively used for diagnosis, it can help in conjunction with imaging and clinical evaluations.

The use of CA-125 levels is particularly important in the context of patients who have a history of ovarian cancer, as an increase in CA-125 can suggest disease progression or recurrence, prompting further investigation. This biomarker is not used for breast cancer, liver function evaluation, or prostate cancer, which highlights its specific importance in ovarian cancer management.