Chapter 40 Flashcards
Gastric Mucosa components
Chief cells
Parietal cells
Thick mucous layer and bicarbonate ion protect stomach mucosa from acid
Chief cells
Secrete pepsinogen
Parietal cells
HCL production 1-3L/day
Activates pepsinogen to pepsin
Kills bacteria
Intrinsic factor for B12 absorption
Lower Digestive Tract components
small and large intestine
Small intestine
Location for most nutrient & drug absorption
Peptic Ulcer Disease causes
H Pylori in 90%
NSAID use
Helicobacter pylori
smoking increases reoccurance
Peptic Ulcer Disease Risk Factors
Family history Type O blood Glucocorticoids & NSAIDs Psychological stress NOT spicy foods
Duodenal ulcers
↑er in men, peaks 35-45 years of age
PAIN-FOOD-RELIEF
ulcers come and go and may need lifelong tx
Duodenal ulcers symptoms
Bright red blood in vomit
Black, tarry stools
Gastric Ulcers
↑er in women, peaks 50-60 years of age
H. pylori present in 50-70%
Gastric Ulcers symptoms
Burning/gaseous pressure Pain continues after meals Anorexia, weight loss, vomiting Nocturnal pain, nausea more commonly associated with CA
GERD can cause
esophageal ulcers, esophagitis, strictures
GERD symptoms
heartburn, regurgitation, early satiety, post-meal bloating, N&V, hiccoughs, “something in throat”
GERD risks
obesity
over 40
Meds that ↓ acid production
PPIs, H2 blockers, Antacids
Meds that ↑ mucosal protection
Prostaglandin analogue
Pepsin Inhibitor
Proton Pump Inhibitors ending
prazole