Vineet Govinda Gupta Oncology on Instagram: "The Carcinoembryonic Antigen (CEA) test is a blood test that measures the levels of a protein called CEA in the blood. This test is commonly used to monitor the progression of various types of cancer, including blood cancer. Elevated levels of CEA in the blood may indicate the presence of cancer cells in the body. However, it is important to note that an elevated CEA level does not necessarily confirm a diagnosis of cancer, as other factors can also c