This post was written by Nicole Shankster, MLS (ASCP), accreditation and referral specialist, Parkview Health.

Lab tests play an important role in the diagnosis, treatment and monitoring of breast cancer. These insights provide clinicians with information to track disease progression and guide clinical decisions.

Common lab tests for breast cancer include hormone receptor tests, HER2 testing, genomic testing and other various blood tests.

Hormone receptor tests

These tests determine if breast cancer cells in a sample of tissue have receptors for hormones like estrogen and progesterone. The presence of these receptors (ER+ or PR+) can indicate that the cancer may respond well to hormone therapy, which is a standard treatment option. 

HER2 testing

This test checks for the presence of the HER2 protein, which can promote the growth of cancer cells. If a breast cancer is HER2-positive, targeted therapies may be effective. HER2 testing requires a tissue sample collected from a biopsy or surgery.

Genomic testing

Genomic tests analyze the genetic makeup of the cancer cells to predict how aggressive the cancer is and how likely it is to recur. This information can help tailor treatment plans to the individual patient. 

Blood tests

Some blood tests can be used to monitor overall health and response to treatment. CA 27.29 is a tumor marker that can indicate the presence of breast cancer.

In summary, the results from lab tests are valuable in determining the most effective treatment plan and for monitoring disease progression or response to therapy. Lab tests help in personalizing treatment plans, which can improve outcomes for patients with breast cancer.

If you’re interested in learning more or signing up for DNA Insights, visit parkview.com/DNAInsights.
Already had a great experience with DNA Insights? Share your story with us!