An observational study of replicate faecal immunochemical tests in the urgently referred symptomatic cohort.
Nicholas G FarkasJames O'BrienMartin B WhyteIain JourdanTimothy A RockallSally C BentonPublished in: Annals of clinical biochemistry (2023)
Replicate FIT as a triage strategy appears most effective where both FITs are negative. CRC risk is low when FIT results are discordant. Double negative FITs are reassuring given benign associated diagnoses, or for patients where endoscopic investigation is high-risk. Larger studies are required to evaluate discordant FITs, enabling refinement of urgent investigation pathways.