---
topic: Occult Stool Blood Workup After Normalized Calprotectin
status: archived-to-gi-owner
last_updated: 2026-05-10
tags: [occult-blood, stool-rbc, archived, diverticular-disease]
priority: urgent
abstract: >-
  This former standalone occult-stool-blood decision tree has been folded into GI Bleeding / Diverticular / Stool Blood. It remains as a short preserved pointer so old links do not break; the original full text is archived.
---

# Occult Stool Blood Workup — archived pointer

This page is no longer the active owner. Its assay-quality audit, repeat-stool rules, colonoscopy-quality check, and green/yellow/orange/red escalation thresholds were folded into [GI Bleeding / Diverticular / Stool Blood](#sec-diverticular) on 2026-05-10.

Preserved core rule: positive Biomed FOB plus stool RBC after normalized calprotectin is not an emergency by itself with normal hemoglobin and a high-quality 2024 colonoscopy, but it is not noise. Persistence, iron/Hb drift, visible blood, melena/upper-GI symptoms, or alarm symptoms should move toward GI-source review rather than endless retesting.

Full original text is preserved in `archive/gi-bleeding-cluster-originals-2026-05-10.md`.