Fuiliú gastrointestinal: fuil urlacan agus stóil dhubh¶

Is éigeandáil leighis é fuiliú géarmhíochaine gastraistéigeach (GI) ina n-éalaíonn fuil ó shoitheach fola réabtha, ulcer, nó cuimilt áit ar bith feadh chonair an díleá, ón éasafagas agus boilg (fuil GI uachtarach) síos go dtí an stéig bheag, an colon, agus an rectum (fuil GI níos ísle). Murab ionann agus créacht sheachtrach ar lámh nó cos, ní féidir leat do lámha a bhrú go díreach isteach ar ulcer boilg ag fuiliú nó ar varix esophageal réabtha, agus is féidir leis an mbolg agus an intestines 1,000 go 2,000 millilítear fola (2 go 4 phionta) ** a cheilt go ciúin sula ndéantar braon amháin a urlacan nó a rith sa leithreas. Cibé an bhfuil fuil gheal dhearg nó ábhar dorcha “caife” ag urlacan (hematemesis), ag dul thar stóil tarra scairddhubh greamaitheacha ( melena**), nó ag dul thar lear mór marún nó fuil gheal dhearg ón rectum (hematochezia), is iad na tosaíochtaí láithreacha atá agat ná seirbhísí éigeandála leighis a ghlaoch, duine urlacan a rolladh ar a thaobh ionas nach mbíonn siad ag báthadh, ag cur fola go docht, ag coinneáil fola go docht, ag coinneáil fola go docht. síos orthu chun turraing hipavolemeach marfach a chosc.

Déan é seo anois¶

1. Call your local emergency number immediately if the person is vomiting blood, passing black tarry stools with dizziness, or bleeding heavily from the rectum. Dial 911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom, or see all uimhreacha éigeandála. Abair leis an seoltóir cibé an bhfuil fuil gheal dhearg á urlacan ag an othar, an bhfuil cirrhosis ae aige, nó an nglacann sé tanaitheoirí fola (frith-theagaláin), toisc go spreagann sé seo ardphrótacail aerbhealaigh paraimhíochaine agus fuilaistriúcháin.
2. Protect the airway by placing any vomiting or drowsy person on their side (Recovery Position). If the person is actively vomiting blood (hematemesis), retching, or becoming drowsy, confused, or unconscious, immediately roll them onto their left side into the lateral recovery position and tilt their chin slightly downward so blood and clots drain freely out of the corner of their mouth into a basin or towel. Use a finger wrapped in a cloth to sweep any large rubbery blood clots out of the front of their mouth if they are gagging.
3. Leag duine neamh-vomiting, meadhrán ar a dhroim chun fainting agus turraing a chosc. Ná ** lig do dhuine a bhfuil amhras ann go bhfuil fuiliú GI air siúl síos an staighre, seasamh ag doirteal an seomra folctha, nó suí ina seasamh ar an leithreas má bhraitheann siad ceann éadrom. Nuair a sheasann tú ina seasamh nuair a ídítear toirt na fola tagann brú fola i dtiteann (syncope ortastatach), rud a fhágann titim tobann, gortuithe troma ceann ar tíleanna seomra folctha, agus gabháil chairdiach. Más rud é go bhfuil siad go hiomlán ar an airdeall agus níl masmas nó urlacan, iad a leagan cothrom ar an urlár nó leaba.
4. Tabhair rud ar bith go docht ó bhéal (gan uisce, gan bainne, ná antacídí, ná aspirín ná NSAIDanna riamh). Ná lig don duine uisce, bainne nó taenna luibhe a ól, agus ná tabhair antacids ó bhéal nó biosmat. Níos tábhachtaí fós, ** ná tabhair aspairín, iobúpróifein (Advil, Motrin), naproxen (Aleve), diclofenac, nó ketorolac** le haghaidh pian boilg: scriosann na drugaí frith-athlastacha neamhsteroidal seo (NSAIDs) bacainn mhúcóis chosanta an ghoile agus déanann pairilis pláitíní fola, agus déanann sé fuiliú artaireach tar éis ulcer mall a fhuiliú.
5. Coinnigh an duine te le pluideanna chun téachtadh fola a chosaint. Clúdaigh an t-othar le brat nó cóta te agus cuir blaincéad faoina bhun má tá sé ina luí ar urlár fuar seomra folctha. Nuair a éiríonn othar fuilithe fuar (hypothermia faoi \(35^\circ\text{C}\) nó \(95^\circ\text{F}\)), stopann an easghluaiseachta téachtadh einsímeach agus pláitíní fola ag oibriú i gceart (cuid den "Tríd Marfach Tráma agus Hemorrhage"), rud a fhágann fuiliú neamhrialaithe.
6. Save a sample or take a smartphone photo of the vomit or stool, and gather all medication bottles. Before flushing the toilet or throwing away a basin of vomit, snap a clear photograph with your phone or save the container to show paramedics (doctors need to see the exact color, clots, and estimated volume). Gather every prescription and over-the-counter bottle in the house, specifically checking for blood thinners (warfarin, apixaban, rivaroxaban, dabigatran, clopidogrel), aspirin/NSAIDs, steroids, and iron or bismuth supplements.

Gastrointestinal bleeding triage and first aid decision flowchart¶

Use this clinical decision tree to identify the source and severity of digestive tract bleeding and take immediate life-saving steps.

flowchart TD
    Start["Suspected Gastrointestinal (GI) Bleeding:<br/>Blood in Vomit, Black Tarry Stool, or Red Rectal Bleeding"] --> AirwayShock{"Check Airway & Shock Signs Immediately:<br/>- Vomiting bright red blood or coffee-grounds?<br/>- Dizzy, fainting, pale, cold clammy sweat?<br/>- Fast heart rate (>100 bpm), confusion, or liver disease?"}

    AirwayShock -->|"YES: Active Hematemesis or Shock"| Emergency911["1. Call 911 / 112 / 999 Immediately<br/>2. If vomiting or drowsy: Roll into Left Lateral Recovery Position<br/>3. If alert & NOT vomiting: Lay flat on back<br/>4. Keep Strictly Nothing by Mouth (NPO)<br/>5. Cover with warm blanket & monitor breathing"]

    AirwayShock -->|"NO: Awake, stable, not vomiting"| StoolColor{"What does the stool or toilet bowl look like?"}

    StoolColor -->|"Jet-Black, Sticky, Tarry Stool<br/>with Foul Odor (Melena)"| MelenaCheck{"Did patient take Iron pills, Pepto-Bismol,<br/>activated charcoal, or black licorice?"}
    MelenaCheck -->|"No (or unsure)"| MelenaER["TRUE MELENA = Upper GI Bleed (>50 to 100 mL blood in stomach):<br/>Go to Hospital Emergency Department Immediately<br/>(Call 911 / 112 / 999 if elderly, on blood thinners, or weak)<br/>Do NOT drive yourself; stay Nothing by Mouth"]
    MelenaCheck -->|"Yes, and ZERO stomach pain,<br/>dizziness, or weakness"| Pseudomelena["Likely Pseudomelena (harmless dark green/black staining):<br/>Contact physician same day to confirm with fecal occult blood test"]

    StoolColor -->|"Large volume Maroon Clots or<br/>Bowl Full of Bright Red Blood (Hematochezia)"| BriskLower["Brisk Lower GI Bleed (or Massive Rapid Upper GI Bleed):<br/>Call 911 / 112 / 999 or Emergency Hospital Transport Immediately<br/>Lay flat, keep warm, bring all blood thinner bottles"]

    StoolColor -->|"Small streaks of bright red blood ONLY<br/>on toilet paper after hard stool"| MinorAnorectal["Likely Hemorrhoids or Anal Fissure:<br/>Schedule prompt doctor evaluation to rule out colorectal polyps/cancer<br/>Go to ER immediately if bleeding does not stop or dizziness develops"]

Decoding the 4 visual patterns of GI bleeding: What color tells you¶

De réir mar a théann fuil tríd an gconair díleá daonna, athraíonn aigéad hidreaclórach boilg, einsímí díleácha (pepsin), agus baictéir intestinal go ceimiceach an móilín dearg haemaglóibin taobh istigh de chealla fola dearga, ag athrú a dhath ó chorcra geal go donn-dubh dorcha. Trí bhreathnú go géar ar an méid a urlacadh nó a cuireadh isteach sa leithreas, is féidir leat a fháil amach cén áit ar tháinig an fuiliú agus cé chomh tapa agus atá sé ag tarlú.

False alarms: Distinguishing real blood from harmless food and pill staining ("Pseudomelena")¶

Before panicking over a dark or reddish stool in someone who feels completely healthy, has a normal pulse, and has zero dizziness or stomach pain, check whether they consumed one of these common mimics in the past 24 to 48 hours:

• Harmless mimics of Black Melena ("Pseudomelena"):
• Oral Iron Supplements (ferrous sulfate, ferrous gluconate, prenatal vitamins): Turns stool a dark greenish-black color, but the stool has a normal firm shape (not sticky tar) and lacks the putrid odor of digested blood.
• Bismuth Subsalicylate (Pepto-Bismol, Kaopectate): Bismuth reacts with trace sulfur in saliva and the gut to form black bismuth sulfide, often turning both the tongue and the stool jet-black.
• Activated Charcoal, black licorice, dark chocolate/Oreo cookies, or large bowls of dark blueberries/grape juice.
• Harmless mimics of Red Hematochezia / Red Vomit:
• Red beets (beetroot / betanin pigment), red gelatin (Jell-O), Kool-Aid / red sports drinks, red food coloring, dragon fruit, or large amounts of tomato sauce.
• Safety Rule: If there is any doubt whatsoever, or if the person has stomach pain, weakness, sweating, or takes aspirin/blood thinners, always treat it as real blood and go to the emergency room (a 30-second hospital fecal occult blood test or hemoglobin fingerstick settles the question immediately).

Major causes of upper and lower gastrointestinal bleeding¶

Understanding what causes GI bleeding helps you give critical medical history to the paramedics and emergency physicians.

1. Upper GI bleeding causes (75% to 80% of all hospital GI bleed admissions)¶

• Peptic Ulcer Disease (Gastric and Duodenal Ulcers: 40% to 50% of upper bleeds): Deep sores eroded into the lining of the stomach or the first part of the small intestine (duodenum), almost always caused by either Helicobacter pylori (H. pylori) bacterial infection or regular use of NSAID painkillers (ibuprofen, naproxen, aspirin, meloxicam, diclofenac). When an ulcer eats down into the submucosa and erodes the wall of a major artery (such as the gastroduodenal artery behind the duodenum or the left gastric artery), blood spurts under high arterial pressure into the gut.
• Esophageal and Gastric Varices (10% to 20% of upper bleeds, highest mortality): In patients with liver cirrhosis (from alcohol use, hepatitis B or C, or fatty liver disease) or portal vein thrombosis, scar tissue in the liver blocks normal blood flow from the intestines. Pressure backs up in the portal vein (portal hypertension), forcing blood to detour through fragile, thin-walled veins lining the lower esophagus and upper stomach (varices), which swell like varicose veins. When a varix ruptures, it causes painless, explosive projectile vomiting of hundreds of milliliters of bright red blood and carries a 15 to 20 percent mortality rate per bleeding episode.
• Mallory-Weiss Tear (5% to 15% of upper bleeds): A longitudinal laceration (tear) in the mucous membrane at the junction where the esophagus meets the stomach, triggered by violent retching, dry heaving, or forceful vomiting (after heavy alcohol binge drinking, food poisoning, hyperemesis gravidarum in pregnancy, or severe coughing fits). Typically starts with several episodes of normal vomit followed suddenly by bright red blood.
• Erosive Gastritis, Esophagitis, and Dieulafoy Lesion: Diffuse pinpoint bleeding from severe acid reflux, alcohol, critical illness stress, or a Dieulafoy lesion (an abnormally large, tortuous submucosal artery in the upper stomach that erodes through a tiny mucosal defect and causes massive sudden bleeding without an ulcer).

2. Cúiseanna fuiliú GI Íochtarach (Colon, Rectum, agus Bputóg Beag)¶

• Fuiliú Atreoraithe (Diverticulosis: 30% go 50% de fhuiliú brisk níos ísle): Is éard atá i gceist le herniations cosúil le pouch beag (diverticula) i mballa mhatánach an colon, atá coitianta i ndaoine fásta os cionn 50 bliain d’aois, áit a dtiteann hartairí treáite cothaitheach (vasa recta) ar bhalla an choilín. Má réabann artaire vasa recta taobh istigh de diverticulum, is cúis le go tobann, gan phian ar líon mór fola marún nó geal dearg agus téachtáin isteach sa leithreas.
• Angiodysplasia (Ectasias Soithíoch): Tinglaí leochaileacha casta de ribeadáin agus féitheacha dilated i mballa an choilínigh dheis nó an stéig bheag, atá coitianta i ndaoine fásta, othair a bhfuil galar duáin ainsealach orthu, nó othair a bhfuil stenosis Aortach orthu (siondróm Heyde).
• ** Colitis Isceimiceach, Galar Inflammach Intinne (Ailgéar an Cholitis / Galar Crohn), agus Colitis Thógálacha**: Murab ionann agus fuiliú atreoraithe (gan phian de ghnáth), is cúis leis na coinníollacha seo pian crampy in íochtair bhoilg agus buinneach fhuilteach nó mucus.
• Polaipí calarectal agus Ailse Chalaireicteach: Go minic bíonn siad ina gcúis le oozing mall, ainsealach as a dtagann anemia easpa iarainn, nó stríoca dorcha dearg uaineacha measctha isteach sa fabraic stóil.
• Hemorrhoids agus Fissures Anal: Is gnách go cótaíonn veins ata sa chanáil anal (hemorrhoids) nó cuimilt ghéar sa líneáil anal (scoilt, a bhraitheann cosúil le “ghloine briste” le linn gluaiseacht bputóg) an taobh amuigh den stól nó drip fuil gheal dhearg ar an bpáipéar leithris tar éis di a ghlanadh.

Ag aithint turraing hypovolemic: Cén fáth gur féidir le brú fola gnáth a bheith ina bhréag¶

Coinníonn gnáthchorp fásta timpeall 5,000 millilítear (5 lítear / 10.5 pionta) fola. Nuair a shéideann duine isteach ina bholg nó ina n-idirstad, scaoileann an corp láithreach luaith adrenaline chun soithigh fola a shrianadh agus chun an croí a bhrostú, rud a choinníonn brú fola systolic ag breathnú go mealltach go dtí go bhfuil 30 faoin gcéad (1.5 lítear) dá fhuil caillte cheana féin ag an othar.

Use the American College of Surgeons Advanced Trauma Life Support (ATLS) hemorrhage classification to recognize early shock before blood pressure crashes:

Critical warnings: Liver cirrhosis, blood thinners, and aortoenteric fistula¶

If the bleeding person belongs to any of these three high-risk groups, inform the 911 / 112 / 999 dispatcher and paramedics in your very first sentence:

1. Known or Suspected Liver Disease / Cirrhosis (Variceal Bleed): Look for yellow eyes/skin (jaundice), a swollen fluid-filled belly (ascites), spider-like red blood vessels on the chest (spider angiomata), or red palms (palmar erythema). Variceal hemorrhage requires immediate hospital intravenous terlipressin or octreotide (to lower portal vein pressure), prophylactic IV antibiotics (ceftriaxone), and emergency endoscopic variceal band ligation within 12 hours.
2. Patients Taking Anticoagulants ("Blood Thinners") or Dual Antiplatelet Therapy: Check if the patient takes warfarin (Coumadin), Direct Oral Anticoagulants (apixaban [Eliquis], rivaroxaban [Xarelto], edoxaban [Savaysa], dabigatran [Pradaxa]), or antiplatelets (clopidogrel [Plavix], prasugrel, ticagrelor, aspirin). Hospital emergency departments carry specific intravenous reversal antidotes (4-factor Prothrombin Complex Concentrate [Kcentra/Beriplex] + IV Vitamin K for warfarin; andexanet alfa for apixaban/rivaroxaban; idarucizumab [Praxbind] for dabigatran) that can stop fatal bleeding if the medical team knows which pill the patient takes and when the last dose was swallowed.
3. Prior Abdominal Aortic Aneurysm (AAA) Graft Surgery ("Herald Bleed" of an Aortoenteric Fistula): If a person who has ever had an open or endovascular surgical graft placed on their abdominal aorta develops any gastrointestinal bleed (even a small, self-stopping episode of hematemesis or melena), it is a surgical emergency until proven otherwise. A synthetic aortic graft can slowly erode into the wall of the adjacent third part of the duodenum, creating an aortoenteric fistula; a small "herald bleed" is often followed hours or days later by catastrophic, fatal exsanguination directly from the aorta into the gut unless repaired in the operating room.

Special considerations: Pediatric GI bleeding and button battery ingestion¶

When an infant, toddler, or older child vomits blood or passes dark or bloody stools, both the causes and the critical blood volume thresholds differ dramatically from adults. Because a child's circulating blood volume is only 70 to 80 milliliters per kilogram of body weight (meaning a 10 kilogram [22 pound] 1-year-old has only 750 milliliters of total blood in their entire body), losing just 150 to 200 milliliters (less than one cup) of blood places a toddler in immediate hypovolemic shock.

• Swallowed Button Battery (Aortoesophageal Fistula Emergency): If a young child vomits even a tiny drop or streak of bright red blood or coffee-ground material, ask immediately if they could have swallowed a lithium coin-cell button battery (even up to 2 to 4 weeks ago, as liquefaction necrosis can erode from the esophagus into the aorta days after battery removal). Call 911 / 112 / 999 immediately and do not give anything by mouth once hematemesis has occurred.
• Intussusception ("Currant Jelly" Stools in Infants 3 Months to 3 Years): If a baby or toddler suddenly draws their knees up to their chest with screaming bouts of colicky abdominal pain every 15 to 20 minutes, followed by lethargy, vomiting, and passing dark red, mucus-filled stools that look like red currant jelly, one segment of their intestine has telescoped inside another (intussusception). This requires immediate emergency hospital ultrasound and air-enema reduction to prevent bowel necrosis and perforation.
• Swallowed Maternal Blood or Epistaxis (Nosebleed) Blood: Sometimes a breastfeeding newborn vomits blood or passes dark stools simply from swallowing maternal blood from a cracked nipple, or an older child vomits coffee-ground blood after swallowing blood from a posterior nosebleed overnight. Even so, a doctor must evaluate the child to rule out true mucosal bleeding, Meckel's diverticulum (painless brick-red rectal bleeding in toddlers), or juvenile polyps.

What to expect in the hospital emergency department: Risk scores and endoscopic hemostasis¶

Knowing what happens once the ambulance arrives at the emergency room helps family members provide clear consent and medication histories:

1. Two Large-Bore Intravenous Lines and Restrictive Blood Transfusion: Emergency nurses immediately place two large-bore intravenous cannulas (16-gauge or 18-gauge) into the forearm or antecubital veins, draw blood for a complete blood count, coagulation panel (INR), lactate, and blood type/crossmatch, and infuse warm balanced crystalloid fluids (Ringer's lactate or \(0.9\%\) normal saline). Modern randomized clinical trials (validated by the ACG, ESGE, and UK NICE) show that a restrictive packed red blood cell transfusion threshold (transfusing when hemoglobin drops to \(7\text{ g/dL}\) [\(70\text{ g/L}\)] in most patients, or \(8\text{ g/dL}\) [\(80\text{ g/L}\)] in patients with active coronary heart disease) saves more lives than over-transfusing, because over-transfusing raises portal and arterial blood pressure and blows off newly formed clots.
2. Glasgow-Blatchford Score (GBS) and Intravenous Medication: Doctors calculate the Glasgow-Blatchford Score (using blood urea nitrogen, hemoglobin, systolic blood pressure, pulse rate, melena, syncope, liver disease, and heart failure) to determine severity. Patients receive high-dose intravenous proton pump inhibitors (such as pantoprazole or esomeprazole) to neutralize stomach acid so platelets can clot, prokinetic erythromycin (given 30 to 60 minutes before endoscopy to clear blood clots from the stomach view), and octreotide or terlipressin plus IV ceftriaxone if liver cirrhosis is suspected.
3. Endoscopic Hemostasis, Interventional Radiology, or Balloon Tamponade: Within 12 to 24 hours (or immediately after airway intubation in unstable patients), a gastroenterologist passes a flexible fiber-optic esophagogastroduodenoscope (EGD) down the throat to locate the bleeding vessel and seal it using metal hemoclips, thermal multipolar electrocoagulation, epinephrine injection, hemostatic powder spray (Hemospray), or elastic variceal rubber band ligation. If bleeding cannot be stopped endoscopically, interventional radiologists perform transcatheter arterial embolization (TAE) (threading a microcatheter through the femoral or radial artery to plug the bleeding branch with coils) or place a transjugular intrahepatic portosystemic shunt (TIPS) for refractory varices.

Ceisteanna coitianta¶

Foinsí seiceáilte¶

• American College of Gastroenterology (ACG, United States): ACG Clinical Guideline: Upper Gastrointestinal and Ulcer Bleeding (Laine et al., American Journal of Gastroenterology, 2021) and ACG Clinical Guideline: Management of Patients with Acute Lower Gastrointestinal Bleeding (Sengupta et al., 2023).
• European Society of Gastrointestinal Endoscopy (ESGE): ESGE Guideline: Endoscopic Diagnosis and Management of Nonvariceal Upper Gastrointestinal Hemorrhage (2021) and Baveno VII Consensus Workshop on Portal Hypertension and Variceal Bleeding (2022).
• National Institute for Health and Care Excellence (NICE, United Kingdom) and British Society of Gastroenterology (BSG, United Kingdom): Acute Upper Gastrointestinal Bleeding in Over 16s: Management (CG141) and BSG Multisociety Care Bundle for Early Management of Acute Upper GI Bleeding.
• American College of Surgeons (ACS, United States): Advanced Trauma Life Support (ATLS) Student Course Manual (Classification of Hemorrhagic Shock: Classes I through IV and the Lethal Triad of Hypothermia, Acidosis, and Coagulopathy).

Treoracha gaolmhara¶

• Shock recognition and first aid management
• Bleeding control: direct pressure, packing, and tourniquets
• Fainting and syncope evaluation
• Food poisoning, acute gastroenteritis, and dehydration
• Uimhreacha éigeandála agus seoladh idirnáisiúnta