How a Blood Test for Lung Cancer works

January 20, 2015

Archon:  The Lung Cancer Blood Test Archon is a multiplex immunoassay clinical blood test that is used by primary care physicians to determine the risk that lung cancer is present in asymptomatic individuals from a high-risk population (20 pack/year smokers over the age of 50) to help deter- mine which patients need to be directed to appropriate noninvasive diagnostic followup (e.g. low-dose computed tomography (LDCT)).  The National Lung Screening Trial (NLST) study [1] found that yearly LDCT scanning reduced lung cancer-specific and all-cause mortality in high-risk individuals by 20% and 6.7% respectively as compared to chest x-rays.  XRays and CT Scans v. Archon However, the false-positive rate of LDCT and x-ray screening is very high: 96.4% and 94.5% of lesions... Continue Reading →

What is the FIT at home colon cancer test?

November 27, 2014

Fecal Immunochemical Test (FIT) The fecal immunochemical test (FIT) is a newer screening test for colorectal (colon) cancer. It tests for hidden blood in the stool, which can be an early sign of cancer. FIT only detects human blood from the lower intestines. Medicines and food don't interfere with the test, so it tends to be more accurate and have fewer false positives than other tests.  Alternate names Immunochemical fecal occult blood test; iFOBT; Colon cancer screening - FIT How the FIT home colon cancer test is performed and resulted:  Get it now > How to Prepare for the Test You do not need to do anything to prepare for the test. How the Test Will Feel Some people may... Continue Reading →