USMLE Prep - Medical Reference Library

Nonvariceal Upper GI Bleed — Endoscopy and PPI

System: Gastroenterology • Reviewed: Aug 31, 2025 • Step 1Step 2Step 3

Synopsis:

Resuscitate and risk stratify (Glasgow-Blatchford); give IV PPI, consider erythromycin pre-endoscopy; endoscopy within 24 hours with hemostasis for high-risk lesions; plan secondary prevention.

Key Points

  • Stabilize ABCs; begin targeted evaluation without delaying life-saving therapy.
  • Use system-specific risk tools to guide testing and disposition.
  • Order high-yield tests first; escalate imaging when indicated.
  • Start evidence-based initial therapy and reassess frequently.

Algorithm

  1. Primary survey and vitals; IV access and monitors.
  2. Focused history/physical; identify red flags and likely etiologies.
  3. Order system-appropriate labs and imaging (see Investigations).
  4. Initiate guideline-based empiric therapy (see Pharmacology).
  5. Reassess response; arrange consultation and definitive management.

Clinical Synopsis & Reasoning

UGIB commonly arises from peptic ulcer disease, portal hypertension, or mucosal injury. Stabilize hemodynamics, obtain type and crossmatch, and risk‑stratify (Glasgow‑Blatchford, Rockall). Identify liver disease stigmata and encephalopathy when variceal sources are possible. Early endoscopy within 24 h is diagnostic and therapeutic; correct coagulopathy guided by clinical context rather than INR alone.


Treatment Strategy & Disposition

Administer IV PPI for suspected nonvariceal bleed; give vasoactive therapy and prophylactic antibiotics if variceal hemorrhage is likely. Perform endoscopic hemostasis for high‑risk stigmata, then transition to oral PPI and H. pylori eradication if indicated. Manage anticoagulants/antiplatelets based on thrombotic risk; resume when hemostasis secured. Admit based on risk scores and comorbidities; ICU for ongoing transfusion needs or instability.


Epidemiology / Risk Factors

  • NSAIDs/alcohol; biliary disease

Investigations

TestRole / RationaleTypical FindingsNotes
CBCBleeding/anemiaLow Hgb
CMPLFTs/electrolytesAbnormal LFTs
Lipase (if pancreatitis)Pancreatic enzymeElevated
CT Abd/Pelvis (selected)ComplicationsFindings vary

Pre-Endoscopy Medications

MedicationExample
PPIPantoprazole 80 mg IV then 8 mg/h infusion or intermittent IV
Erythromycin250 mg IV over 20–30 min before endoscopy

Pharmacology

MedicationMechanismOnsetRole in TherapyLimitations
Balanced crystalloidsPlasma volume expansionImmediateResuscitationFluid overload; ED use
Octreotide (variceal)Splanchnic vasoconstrictionMinutesAcute variceal bleedAbdominal cramps; ED use
Packed RBCO₂-carrying capacityImmediateTransfuse to Hgb thresholdTransfusion reactions; ED use
PPI (IV)H+/K+ ATPase inhibitionHoursNon-variceal UGIBInfection risk long-term; ED use
Ceftriaxone (cirrhosis)CephalosporinHoursSBP prophylaxis in variceal bleedAllergy; ED use

Prognosis / Complications

  • Varies by etiology and bleeding severity; rebleeding/perforation

Patient Education / Counseling

  • Explain red flags and when to seek emergent care.
  • Reinforce medication adherence and follow-up plan.

Notes

Avoid routine tranexamic acid. Ensure clear discharge plan and NSAID avoidance; consider COX-2 plus PPI if NSAID essential.


References

  1. ACG Guideline — Upper GI Bleeding — Link
  2. ESGE Nonvariceal UGIB Guideline — Link