Glasgow-Blatchford Score (Upper GI Bleed)
Glasgow-Blatchford score for upper GI bleeding (Blatchford 2000).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Urea unit
- Blood urea (mmol/L)
- Blood urea / BUN
- 12
- Sex
- Male
- Hemoglobin
- 11 g/dL
- Systolic BP
- 95 mmHg
- Pulse ≥ 100 /min
- Yes
- Presentation with melena
- Yes
Result: Glasgow-Blatchford 11 — high risk (≥ 6, > 50% chance of needing transfusion or endoscopic intervention).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Bands
- A score of 0 (or ≤ 1 by the BSG extension) flags a candidate for outpatient management; ≥ 6 carries a > 50% chance of needing transfusion or endoscopic intervention. A triage aid, not an order.
What you enter
- Urea unit (mmol/L urea or mg/dL BUN)
- Blood urea / BUN (in the selected unit)
- Sex
- Hemoglobin
- Systolic BP
- Pulse ≥ 100 /min (+1)
- Presentation with melena (+1)
- Presentation with syncope (+2)
The other 2 fields
- Hepatic disease (+2)
- Cardiac failure (+2)
How this is calculated
- Inputs
- Blood urea (mmol/L, or BUN mg/dL ÷ 2.8), sex-specific hemoglobin, systolic BP, pulse ≥ 100, melena, syncope, hepatic disease, and cardiac failure — summed to a maximum of 23.
Blatchford O, Murray WR, Blatchford M. A risk score to predict need for treatment for upper-gastrointestinal haemorrhage. Lancet. 2000;356(9238):1318-1321. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.