Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

PUD and GERD

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In one line

·Acid belongs in the stomach, where a thick mucus shield protects the lining from being burned.

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Normal physiology

·The stomach is a muscular bag that churns food and bathes it in acid made by parietal cells in the stomach wall. That acid is strong enough to dissolve metal, so the stomach protects itself with a thick mucus coat and bicarbonate (a base that neutralizes acid). At the top, the lower esophageal sphincter (LES)—a ring of muscle—acts like a trapdoor, keeping stomach contents from splashing back up into the esophagus. At the bottom, the pyloric sphincter controls the release of partly digested food into the duodenum (the first part of the small intestine). Prostaglandins (local chemical messengers) tell the stomach lining to make mucus and to pump blood to the lining so it stays healthy. When all these parts work together, acid stays in the stomach, digestion runs smoothly, and nothing gets burned.

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What goes wrong

·Two big breaks cause most trouble. In GERD, the lower esophageal sphincter (the muscle door at the top of the stomach) gets weak or lazy, or increased belly pressure (obesity, pregnancy, hiatal hernia) forces acid up into the esophagus, which has no mucus shield and gets burned. In PUD, either H. pylori bacteria bore through the stomach's mucus layer and damage the lining directly, or NSAIDs turn off prostaglandin production, which shuts down mucus and bicarbonate output and starves the lining of blood—leaving it naked against acid. Once the mucus shield is breached, acid eats a hole (an ulcer) into the stomach or duodenal wall. Every symptom downstream—heartburn, regurgitation, upper belly pain, black stool, bloody vomit—flows from one of these two upstream breaks.

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Hallmark signs

·Burning behind the breastbone (heartburn) that gets worse when you lie down or bend over
·Gnawing or burning pain in the upper belly, often between meals or at night
·Pain that gets better when you eat food or take antacids
·Nausea or feeling full quickly after eating a small amount
·Bloating or burping more than usual
·Trouble swallowing or food getting stuck
·Unintended weight loss
·Black, tarry stools or vomit that looks like coffee grounds

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Red flags · escalate now

·Black, tarry stools or vomit that looks like coffee grounds (signs of bleeding)
·Trouble swallowing or food getting stuck
·Unintended weight loss (losing weight without trying)
·Severe, sudden belly pain that does not go away (may mean a hole has formed in the stomach or intestine)
·New symptoms starting after age 60

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Workup

·H. pylori testing (urea breath test, stool antigen test, or biopsy during endoscopy)
·Complete blood count (CBC) with hemoglobin and hematocrit
·Upper endoscopy (esophagogastroduodenoscopy, EGD)
·Fecal occult blood test (FOBT) or fecal immunochemical test (FIT)
·Serum gastrin level
·NSAID medication history review

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Treatment

·Proton pump inhibitor (PPI) such as omeprazole 20–40 mg daily for 8 weeks
·H. pylori eradication therapy: triple therapy (PPI + clarithromycin + amoxicillin) or quadruple therapy (PPI + bismuth + tetracycline + metronidazole) for 10–14 days
·Stop NSAIDs completely, or switch to acetaminophen; if NSAIDs are unavoidable (e.g., for heart protection), take the lowest dose with a PPI
·Lifestyle changes for GERD: lose weight if overweight, elevate the head of the bed 6–8 inches, avoid meals within 3 hours of bedtime, avoid trigger foods (chocolate, mint, caffeine, alcohol, fatty foods)
·Urgent upper endoscopy if alarm signs are present: age > 60 with new symptoms, unintended weight loss, trouble swallowing, vomiting blood, black stool, or anemia
·Nissen fundoplication surgery if GERD symptoms persist despite 8 weeks of PPI and full lifestyle changes
·Intravenous PPI (e.g., pantoprazole 80 mg bolus, then 8 mg/hour infusion) and urgent endoscopy for active upper GI bleeding

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NCLEX trap

·Antacids neutralize acid for a few hours, but they do not fix the upstream problem—a weak valve that lets stomach acid splash back up. You must also help the patient lose weight if overweight, raise the head of the bed 6–8 inches, avoid eating within 3 hours of bedtime, and use a PPI (proton pump inhibitor, a medicine that tells the stomach to make much less acid) for 8 weeks so the esophagus lining can heal. Lifestyle changes plus PPI together close the loop.
·Not all upper belly pain comes from an ulcer. Some is GERD, some is gastritis (lining irritation without a hole), some is something else. When you do suspect PUD, you must test for H. pylori with a breath test, stool antigen, or biopsy during endoscopy. If the test is positive, you treat with triple therapy—a PPI plus two antibiotics for 10–14 days—or quadruple therapy if resistance is high. A PPI alone lowers acid and may let the ulcer heal temporarily, but if H. pylori is still alive it will dig new holes as soon as you stop the medicine.
·Alarm features mean the damage has crossed a danger line. Black tarry stools signal bleeding from an ulcer or erosion. Weight loss and trouble swallowing raise the concern for esophageal cancer, especially in someone over 50 with years of reflux (Barrett esophagus, a pre-cancer change in the esophagus lining, develops in about 10–15% of people with chronic GERD). Persistent vomiting can mean an outlet obstruction from ulcer scarring. Any alarm feature requires upper endoscopy (a camera down the throat to look directly at the esophagus, stomach, and duodenum) within 2 weeks, not reassurance and antacids.
·NSAIDs block an enzyme called COX-1 that normally tells the stomach lining to make protective mucus. Without that mucus shield, acid eats through the lining and creates ulcers. If a patient has PUD and truly needs an NSAID for pain or heart protection (for example, low-dose aspirin after a heart attack), you must add a PPI to rebuild the mucus barrier while the NSAID is working. Better yet, switch to acetaminophen for pain if possible, because it does not damage the stomach.
·A perforated ulcer spills stomach contents—acid, food, and bacteria—into the peritoneal cavity (the space around the intestines), causing peritonitis (infection and inflammation of the belly lining). This is a surgical emergency. The patient needs immediate IV fluids, broad-spectrum antibiotics to cover gut bacteria, and urgent surgery to patch or remove the perforated area and wash out the belly. Without surgery, the infection spreads and the patient can go into septic shock and die within hours.
·PPIs are powerful and necessary to heal erosive esophagitis and ulcers—they raise stomach pH above 4 most of the day, which stops pepsin (the stomach enzyme that digests protein) from attacking tissue. Standard healing time is 8 weeks. After that, you should try stepping down to the lowest dose that controls symptoms or switching to an H2 blocker (a weaker acid suppressant like famotidine) for maintenance, while reinforcing weight loss, head-of-bed elevation, and avoiding trigger foods. Long-term high-dose PPI use (years) is linked to small but real risks: low magnesium, vitamin B12 deficiency, bone fractures, kidney disease, and a higher chance of gut infections (because stomach acid normally kills many germs). Use PPIs to heal the break, then dial back and prevent new damage with lifestyle.

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