This item is currently out of stock and lead time for new stock is 2-3 weeks. Orders are being accepted but lead time could be as much as 3 weeks. (50 Test Cassettes and Tubes Only) REDUCED PRICE! Originally $453.75. The QuickVue iFOB (immunochemical Fecal Occult Blood) test is an immunochemical device intended for the qualitative detection of fecal occult blood by laboratories or physicians’ offices.