Cancer biomarker testing: a simplified guide.

In episode 2, Dr. Lucas explains to Sofia that biomarker testing involves analyzing tumor samples to identify specific biomarkers, which can help doctors make more accurate diagnoses and treatment decisions. He also describes the two main types of tests used to identify cancer mutations: single biomarker testing, which examines one biomarker at a time, and multiple biomarker testing, which analyzes several biomarkers simultaneously for more comprehensive results.