Ch 57, 58, 59 Flashcards
Acid rebound
Reflex response of the stomach to lower than normal acid levels
Antacids
a group of inorganic chemicals that neutralize stomach acid
Digestive enzymes
Enzymes produced in the GI tract to break down foods into usable nutrients
Gastrointestinal protectant
Drug that coats any injured area in stomach to prevent further injury from acid or pepsin
Histamine02 antagoints
Drug that blocks H2 receptor sites; used to decrease acid production in the stomach
Peptic ulcer
Erosion of the lining of the stomach or duodenum; from imbalance between acid produced and mucous protection
Prostaglandin
any one of numerous tissue hormones that have local effects on various systems and organs of body; including vasoconstriction, vasodilation, increased or decreased GI
Proton pump inhibitor
Drug that blocks H+,. K+ ATPase enzyme system on secretory surface of gastric parietal cells,
Interfering with final step of acid production and lowering acid levels in stomach
Antidiarrheal
Blocks stimulation of GI tract, leading to decreased activity and increased time for absorption of needed nutrients and water
Bulk stimulant
Increases in bulk, frequently by osmotic pull of fluid into feces, the increased bulk stretches the GI wall causing stimulation and increased GI movement
Carthartic dependence
Overuse of laxatives can lead to the need for strong stimuli to initiate movement in intestines
Chemical stimulant
Stimulates the normal GI reflexes by chemically irritating the lining of the GI wall, leading to increased activity in GI tract
Constipation
Slower than normal evacuation of large intestine which can result in increased water absorption from feces and lead to impaction
Diarrhea
More frequent than normal bowel movements, often fluid-like and watery because not enough time for absorption
Lubricant
INcreased viscosity of feces, making it difficult to absorb water from the bolus and easing the movement of bolus through intestines