Nursing care
Upper GI Bleed nursing care: what to assess and what to do first
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Upper GI bleed presents with coffee-ground emesis, melaena, or both, and the immediate priorities are two large-bore IV lines, type and cross for blood, and starting a proton pump inhibitor infusion while endoscopy is arranged. Airway and haemodynamic stability come before diagnosis. Vital sign trends and haemoglobin drift matter more than any single reading.
The clinical picture
Upper GI bleed originates proximal to the ligament of Treitz — oesophagus, stomach, or duodenum — and the two hallmark presentations are coffee-ground emesis, blood altered by gastric acid into a dark granular vomitus, and melaena, black tarry stool with a distinctive odour from digested blood. Frank haematemesis, bright red vomited blood, signals a brisker, more active bleed than coffee-ground emesis and should raise urgency accordingly.
Common causes include peptic ulcer disease, oesophageal varices in patients with portal hypertension, Mallory-Weiss tears from forceful vomiting, and gastritis, often related to NSAID use, alcohol, or stress in critically ill patients. The underlying cause changes the treatment plan significantly, particularly for variceal bleeds, but it does not change the initial nursing priorities, which stay focused on stabilisation regardless of cause until endoscopy identifies the source.
Assessment: what to look for and in what order
Start with airway and circulation. Assess for haematemesis and its character, coffee-ground versus frank red blood, and check stool for melaena or, less commonly with upper sources, haematochezia if the bleed is brisk enough to transit quickly. Take a full set of vital signs and look specifically for tachycardia and orthostatic hypotension, which appear before a drop in blood pressure at rest and are earlier warnings of significant volume loss.
Assess mental status, skin colour and temperature, and capillary refill as indirect indicators of perfusion. Review recent labs or draw new ones: haemoglobin and haematocrit, though these may not reflect acute blood loss immediately due to haemodilution lag, plus coagulation studies and liver function if variceal bleeding is suspected. Ask about NSAID use, anticoagulant therapy, alcohol history, and prior GI bleeding, since each shifts the likely cause and the risk of recurrence.
Immediate interventions
Establish two large-bore IV lines, generally 18-gauge or larger, to allow rapid volume resuscitation and blood product administration if needed. Send blood for type and crossmatch immediately, since transfusion needs can escalate quickly and crossmatching takes time the patient may not have if you wait until it becomes urgent.
Start a proton pump inhibitor infusion, which reduces gastric acidity and helps stabilise clot formation at the bleeding site, while the team arranges urgent endoscopy for both diagnosis and treatment. Keep the patient NPO in anticipation of endoscopy, monitor vital signs frequently, and position the patient to protect the airway, particularly if there is active haematemesis and any risk of aspiration.
Ongoing nursing management
Monitor for signs of ongoing or recurrent bleeding: repeat episodes of haematemesis or melaena, falling blood pressure, rising heart rate, decreasing urine output, and trending haemoglobin. A single stable haemoglobin does not rule out an active bleed, so track the trend over serial draws rather than one value in isolation.
Administer blood products as ordered and reassess response after each unit. Continue the PPI infusion as prescribed and prepare the patient for endoscopy, which typically follows resuscitation and stabilisation rather than preceding it. Document emesis and stool characteristics precisely, including volume and colour, since these observations guide the team's judgement about whether the bleed is worsening, stable, or resolving.
Patient and family education
Explain the cause of the bleed in terms the patient can act on: if NSAID use contributed, discuss alternatives for pain management; if alcohol is a factor, address it directly and connect the patient with resources rather than avoiding the topic. Patients on anticoagulants need clear guidance on the plan for resuming or adjusting that therapy, which is a medical decision but one the nurse needs to reinforce accurately.
Teach the patient to recognise and report recurrence: black tarry stool, vomiting blood or coffee-ground material, dizziness, or unusual fatigue. Explain what to expect from any prescribed acid-suppression therapy, including that it is typically continued for a defined course after discharge, and stress the importance of follow-up endoscopy or clinic visits if scheduled.
How this appears on the NCLEX
Priority questions typically present a patient with coffee-ground emesis or melaena and ask what to do first, and the correct sequence is establishing IV access and preparing for resuscitation before anything diagnostic. An option describing immediate endoscopy without first stabilising the patient is usually a distractor, since stabilisation comes first in the actual clinical sequence.
Watch for questions distinguishing coffee-ground emesis from frank haematemesis, since the exam expects you to recognise the latter as a marker of more active, more urgent bleeding. Questions may also test recognition of early shock, tachycardia and orthostatic changes before hypotension at rest, and expect you to identify these as reasons to escalate rather than wait for a falling blood pressure to confirm the concern.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our gastrointestinal practice questions are the closest set to what this page covers.
Common questions
What is the difference between coffee-ground emesis and melaena?
Coffee-ground emesis is vomited blood altered by stomach acid, appearing dark and granular. Melaena is black, tarry, foul-smelling stool from digested blood passing through the GI tract. Both indicate upper GI bleeding, but their presence together often signals a more significant bleed.
Why two large-bore IV lines for a GI bleed?
Large-bore access, typically 18-gauge or wider, allows rapid infusion of fluids and blood products if the patient deteriorates. Two lines give redundancy if one fails and support simultaneous fluid and blood administration when needed.
Why start a PPI infusion before endoscopy?
Proton pump inhibitors reduce gastric acid production, which helps stabilise clots already forming at the bleeding site and can reduce the risk of rebleeding. Starting it early, before the endoscopic source is confirmed, is standard practice while the definitive procedure is arranged.
Does a normal haemoglobin rule out active bleeding?
No. In acute blood loss, haemoglobin can appear falsely reassuring initially because plasma and red cells are lost proportionally, and haemodilution from fluid shifts takes time to show up in the lab value. Trend the haemoglobin over serial draws rather than relying on one result.
What early vital sign changes suggest a significant GI bleed?
Tachycardia and orthostatic hypotension typically appear before resting blood pressure drops, making them earlier warning signs of significant volume loss. Waiting for hypotension at rest to confirm concern means you have already missed the earlier window to escalate.