Antiulcer Drugs Flashcards
A broad term for an ulcer that occurs in the upper GI tract
Peptic ulcer
A strongly acidic solution of gas hydrogen chloride in water
Hydrochloric acid
A digestive enzyme activated at a pH of 2
Pepsin
A thick, viscous material that provides a barrier between the mucosal lining and the acidic gastric secretions
Gastric mucosal barrier (GMB)
Results from reflux of acidic gastric secretions into the esophagus (GERD)
Esophageal ulcer
Frequently occurs because of a breakdown in GMB
Gastric ulcer
Caused by hypersecretion of acid from the stomach passing into the duodenum
Duodenal ulcer
Inflammation or erosion of the esophageal mucosa caused by a reflux of gastric acid content from the stomach into the esophagus
Gastroesophageal reflux disease (GERD)
An ulcer that usually follows a critical situation, such as extensive trauma or major surgery
Stress ulcer
This medication promotes ulcer healing by neutralizing hydrochloric acid and reducing pepsin activity
Antacids: Sodium bicarbonate (Baking soda), Calcium bicarbonate (TUMS), Magnesium hydroxide, Aluminum hydroxide
Agents used to treat duodenal ulcers and prevent their return
Histamine2 receptor antagonists Famotidine (Pepcid), Cimetidine (Tagamet)
What is normal gastric pH?
2-5
How do we test for H. pylori?
Meretek urea breath test - The patient drinks liquid containing 13C urea. H. pylori will hydrolize the urea and release 13CO2, which is detected in the breath. Blood and stool tests can also check for antibodies.
Explain treatment of H. pylori.
The patient is treated for 7-14 days with an antibiotic, a PPI, and bismuth salicylate. Then the patient is treated for 6 weeks with an H2 blocker or a PPI.
List nonpharmacological measures for treating GERD and Peptic ulcers.
Avoid alcohol and tobacco
Lose weight if obese
Avoid hot, spicy, greasy foods
Take NSAIDS and steroids with food
Sit upright after meals
Do not eat before bedtime
Wear loose-fitting clothing
Sleep with head elevated