Glasgow-Blatchford Score (GBS) Calculator

Determining clinical intervention necessity for acute upper gastrointestinal bleeding patients
Automatically calculates when items are entered or clicked.

Urea nitrogen (mg/dL):
Hemoglobin (g/dL):
Initial Systolic BP (mmHg):

GBS 0 points : Low risk / intervention necessity within 1%, hospitalization or emergency endoscopy not required.
GBS 1 point or more : High risk / high possibility of needing intervention (blood transfusion, endoscopy, surgery, etc.)

Reference :
Blatchford O, Murray WR, Blatchford M. A risk score to predict need for treatment for upper-gastrointestinal haemorrhage. Lancet. 2000 Oct 14;356(9238):1318-21. doi: 10.1016/S0140-6736(00)02816-6. PMID: 11073021.