Gastrointestinal Disease Flashcards
what medications are commonly used in upper GI disease?
- antacids
- H2 receptor blockers
- proton pump inhibitors
what GI diseases can cause malabsorption?
- pernicious anaemia
- coeliac disease
- crohn’s disease
what GI diseases can affect the large bowel?
- inflammatory bowel diseases
- crohn’s disease
- ulcerative colitis
what are antacids?
medications that eliminate formed acids
how do antacids work?
alkalis that form a salt with the gastric acid & neutralise its effects on the tissues
how is stomach acid produced?
parietal cells in the stomach wall are triggered to produce acid
what are the three main parietal cell triggers?
- acetylcholine
- gastrin
- histamine
what is the function of H2 receptor antagonists?
reduce acid production
how do H2 receptor antagonists work?
preventing histamine activation of acid production
what common H2 receptor antagonist is commonly used?
Ranitidine
what ending does proton pump inhibitor medication normally have?
‘prazole’
what are examples of proton pump inhibitors?
- omaprazole
- lansoprazole
- pantoprazole
what is meant by dysphagia?
difficulty with swallowing
what occurs during fibrosis of the oesophagus?
- loss of muscle tissue of the oesophagus
what is scleroderma?
- elastic tissue in the oesophagus is replaced with fibrous tissue