Glasgow-Blatchford Score calculator
Result
0points
Score 0 — very low risk, outpatient OGD
How to use it
- 1
GBS = 0. ~0.5% mortality — NICE recommends outpatient OGD within 24h.
- 2
BUN bands. ≥6.5, ≥8, ≥10, ≥25 mmol/L — each step adds more points.
- 3
Haemoglobin sex-specific thresholds. Males: <13 g/dL +1, <12 +3, <10 +6. Females: <12, <10, <10.
When to use it
- Pre-endoscopy triage
- GBS 0 identifies patients safe for outpatient management.
- ED discharge decision
- GBS 0 + Rockall 0–2: NICE recommends early discharge path.
- Before endoscopy results
- GBS can be calculated immediately from admission bloods.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Hepatology and GI
- Inputs
- 9
- Type
- Formula
