Glasgow-Blatchford Score

UGIB risk stratification (simplified).

GBS

Patient parameters

Adjust values, then click Calculate.

Hemoglobin (g/dL)

0–10

Systolic blood pressure (mmHg)

30–300

Heart rate

20–220

Blood urea nitrogen (mg/dL)

0–1000

Melena

Syncope

Hepatic disease history

Cardiac failure

Results

Glasgow-Blatchford score: 8 points

What this calculator does

The Glasgow–Blatchford score (GBS) risk-stratifies upper gastrointestinal bleeding. It identifies patients who may be managed without admission when scores are very low.

Formula and variables

Displayed formula: GBS

The engine evaluates: Glasgow-Blatchford score (points). Variable names match the input field keys so you can trace each step from entry to output.

How to use this tool

1. Open the Glasgow-Blatchford Score and enter your values using the units shown beside each field.
2. Review that inputs are within the typical physiological range before you calculate.
3. Read the result together with the interpretation notes below and your local clinical context.

How to interpret the result

A score of 0–1 in validated settings may support outpatient management in selected patients. Higher scores correlate with transfusion need and intervention—coordinate with gastroenterology early.

Limitations and disclaimer

This tool supports education and clinical triage only. It does not replace professional medical advice, diagnosis, or treatment. Reference ranges vary by laboratory, age, pregnancy status, and comorbidity. Always confirm critical decisions with institutional protocols and qualified clinicians.