COVID concerns highlight the importance of adequate fecal immunochemical test sample collection

Abstract

Key Points Fecal immunochemical test (FIT) stool samples with the lightest color had significantly lower fecal hemoglobin (Hb) levels than all darker classes. It is reassuring that among the 467 patients who underwent colonoscopy regardless of FIT results, light‐color samples did not yield higher false‐negative results for colorectal cancer and advanced adenomas.