What does score 0 mean?

Very low risk of needing hospital-based intervention in appropriate low-risk pathways.

Glasgow-Blatchford Score (UGIB)

Medical context

Risk-stratify upper GI bleeding for need for intervention and safe outpatient management.

GI and hepatology teams use this with endoscopy findings, labs, and transplant referral criteria.

This page explains the GBS formula, how to interpret the output, known limitations, and peer-reviewed references so you can verify results against primary sources and local protocols.

It is grouped under Gastroenterology because liver disease and gi bleed risk tools.

How to use this calculator

Enter the values requested by the GBS calculator using the units shown beside each field.
Review the calculated result and read the interpretation section before acting on the output.
Check limitations and references if the result will change management, dosing, or disposition.
Use the related calculators section when you need supporting values (for example electrolytes, weight, or complementary risk scores).

Calculator

BUN (mg/dL)

Sex (for hemoglobin banding)

Hemoglobin male (g/dL)

Systolic BP (mmHg)

Heart rate ≥100

Melena present

Syncope

Hepatic disease

Cardiac failure

Result

Score 0 — very low risk; outpatient pathway often safe

Educational use only. Confirm results with clinical judgment, primary sources, and local protocols. Not a substitute for professional medical advice. Full disclaimer.

Formula

Points from BUN, hemoglobin, SBP, heart rate, melena, syncope, liver disease, and heart failure.

Interpretation

Score 0 identifies very low-risk patients often suitable for outpatient care in validated pathways.

Limitations

Does not replace resuscitation or endoscopy judgment for unstable patients.

Frequently asked questions

What does score 0 mean?: Very low risk of needing hospital-based intervention in appropriate low-risk pathways.
Is the GBS result enough to make a treatment decision?: No. Calculators support medical decision-making but do not replace examination, shared decision-making, institutional protocols, or consultant input when stakes are high.
Does Calcmedical store the values I type in?: Inputs are processed in your browser for this session. We do not ask for patient names or medical record numbers. See our privacy policy for hosting and analytics details.

References

Blatchford O et al. Lancet. GBS.