All EMS presentations
GIClinical presentation

GI bleed

A streamlined, differential-led presentation for rapid clinical review.

Clinical snapshot

Twenty-second review

  • Gastrointestinal bleeding reduces circulating volume and oxygen-carrying capacity; visible blood may lag behind the degree of hemorrhage or be altered by digestion.
  • Hematemesis, melena with syncope, ongoing hematochezia, shock, anticoagulation, or peritonism requires rapid transport.
  • Keep swallowed blood or iron-related stool change in the differential; overlapping or concurrent illness remains possible.
  • For gi bleed, trends and combinations of findings are more informative than one isolated vital sign.
Differentials

Compare the clinical patterns

The repeated material is grouped inside each possibility. Open only the condition you need.

Serious2 conditions
Massive hemorrhageTime-sensitive high-risk possibility

HPI

Clarify hematemesis, coffee-ground emesis, melena or hematochezia; amount/frequency; active bleeding.

Signs & symptoms

Ongoing bleeding, liver disease, shock, or rapid deterioration.

Focused exam

Inspect for distension, scars, hernia, emesis, or blood; auscultate and palpate gently for focal tenderness, guarding, or rigidity; Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues.

Brief pathophysiology

Massive hemorrhage may cause gi bleed through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Massive hemorrhage: Ongoing bleeding, liver disease, shock, or rapid deterioration.
  • Hematemesis, coffee-ground emesis, melena or hematochezia?
  • Amount/frequency.
Ruptured varixTime-sensitive high-risk possibility

HPI

Clarify amount/frequency; active bleeding; syncope/presyncope.

Signs & symptoms

Ongoing bleeding, liver disease, shock, or rapid deterioration.

Focused exam

Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues; Assess emesis or stool appearance, abdominal findings, perfusion, orthostatic context when safe, liver disease signs, and medication use.

Brief pathophysiology

Ruptured varix may cause gi bleed through a time-sensitive process capable of rapid physiological deterioration.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Ruptured varix: Ongoing bleeding, liver disease, shock, or rapid deterioration.
  • Amount/frequency.
  • Active bleeding?
Common2 conditions
PepticCommon presentation pattern

HPI

Clarify hematemesis, coffee-ground emesis, melena or hematochezia; amount/frequency; active bleeding.

Signs & symptoms

Melena, hematemesis, hematochezia, NSAID use, or known disease may suggest the source.

Focused exam

Inspect for distension, scars, hernia, emesis, or blood; auscultate and palpate gently for focal tenderness, guarding, or rigidity; Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues.

Brief pathophysiology

Peptic may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Melena, hematemesis, hematochezia, NSAID use, or known disease may suggest the source.
  • Hematemesis, coffee-ground emesis, melena or hematochezia?
  • Amount/frequency.
Lower-GI bleedingCommon presentation pattern

HPI

Clarify amount/frequency; active bleeding; syncope/presyncope.

Signs & symptoms

Melena, hematemesis, hematochezia, NSAID use, or known disease may suggest the source.

Focused exam

Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues; Assess emesis or stool appearance, abdominal findings, perfusion, orthostatic context when safe, liver disease signs, and medication use.

Brief pathophysiology

Lower-GI bleeding may explain the presenting symptoms through a common clinical mechanism, while serial assessment checks for complications or an alternate cause.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Melena, hematemesis, hematochezia, NSAID use, or known disease may suggest the source.
  • Amount/frequency.
  • Active bleeding?
Mimics2 conditions
Swallowed bloodImportant alternative presentation

HPI

Clarify hematemesis, coffee-ground emesis, melena or hematochezia; amount/frequency; active bleeding.

Signs & symptoms

Appearance can mislead without the full clinical picture.

Focused exam

Inspect for distension, scars, hernia, emesis, or blood; auscultate and palpate gently for focal tenderness, guarding, or rigidity; Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues.

Brief pathophysiology

Swallowed blood can resemble gi bleed through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Appearance can mislead without the full clinical picture.
  • Hematemesis, coffee-ground emesis, melena or hematochezia?
  • Amount/frequency.
Iron-related stool changeImportant alternative presentation

HPI

Clarify amount/frequency; active bleeding; syncope/presyncope.

Signs & symptoms

Appearance can mislead without the full clinical picture.

Focused exam

Assess hydration, perfusion, and relevant chest, flank, pelvic, or rectal-history clues; Assess emesis or stool appearance, abdominal findings, perfusion, orthostatic context when safe, liver disease signs, and medication use.

Brief pathophysiology

Iron-related stool change can resemble gi bleed through overlapping symptoms or referred physiology despite a different primary mechanism.

Vital-sign pattern

What the trend may show

Possible pattern

Hemorrhage is a trend diagnosis: tachycardia and narrowing pulse pressure may precede hypotension. Age, pregnancy, medications, and pacing can blunt expected responses.

Heart rate (bpm)

Often rises

Tachycardia is a common compensatory response but may be absent.

Pulse pressure (mmHg)

May narrow

Narrowing pulse pressure can reflect reduced stroke volume.

Blood pressure (mmHg)

May fall late

A normal pressure does not exclude significant compensated hemorrhage.

MAP (mmHg)

May fall

A falling trend supports worsening perfusion; interpret with mental status and skin signs.

Front-load in the triage report

  • Appearance can mislead without the full clinical picture.
  • Amount/frequency.
  • Active bleeding?
Red flags

Findings that should escalate concern

  • Hematemesis, melena with syncope, ongoing hematochezia, shock, anticoagulation, or peritonism requires rapid transport.
  • Massive hemorrhage or ruptured varix: Ongoing bleeding, liver disease, shock, or rapid deterioration.
Related medications

Medication recognition

ApixabanRivaroxabanClopidogrelWarfarin
Related EMS presentations

Continue the clinical pathway

GIAbdominal painCardiacSyncope / presyncopeGeneral MedicalNausea / vomitingGeneral MedicalHypotension / shockHematologicBleeding while anticoagulated
References

Clinical and academic sources

Curated clinical guidance and peer-reviewed evidence supporting this presentation. Current BCEHS guidance, medical direction, and local policy remain authoritative for practice.

BCEHS Handbook — specific CPGs

  1. D02: BleedingBC Emergency Health Services Handbook

    Official BCEHS clinical practice guidance for bleeding.

  2. E05: Abdominal PainBC Emergency Health Services Handbook

    Official BCEHS clinical practice guidance for abdominal pain.

Supporting clinical and academic evidence

  1. Appropriateness Criteria: Acute Nonlocalized Abdominal PainAmerican College of Radiology

    Evidence-based diagnostic context for acute nonlocalized abdominal pain.

  2. CEDIS Presenting Complaint List updateCanadian Association of Emergency Physicians

    Presenting-complaint terminology and categorization context. It does not establish a prehospital “top 100” ranking.

  3. ACG Clinical Guideline: Upper Gastrointestinal and Ulcer BleedingAmerican Journal of Gastroenterology · 2021

    Risk assessment, hemodynamic compromise, transfusion context, and urgent management of upper GI bleeding.