Test Details: A TP53 genetic test usually uses a sample of your blood to look for changes in the tumor protein 53 gene (TP53). Changes in the TP53 gene are linked to many different types of cancer. BRCA1 and BRCA2 gene test is a blood test that can tell you if you have a higher risk of getting breast or ovarian cancer. This panel includes testing of BRCA1, BRCA2 and TP53 by Next generation sequencing.