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Ch. 79 Laxative
Pharmacology for Nurses
Question | Answer |
---|---|
Laxatives: ____effects is production of soft, formed stool once a day | laxatives |
Laxatives: ____ effect is prompt, harsh, immediate evacuation of bowel | catharsis |
Laxatives: ____ mL of water enters colon per day; ___ is absorbed | 1500; 90% |
Laxatives: too much water absorption or slow transit can cause ____ stool and constipation | hard |
Laxatives: ____ can absorb more water causing stool to be softer and it can increase stool mass | Fiber |
Laxatives: Laxatives are indicated for many patients (episiotomies, hemorrhoids, in ____ patients to reduce straining, in elderly due to _______). | heart; muscle loss |
Laxatives: avoid ______ in patients with appendicitis, diverticulitis, ulcerative colitis, and abdominal surgery | laxative |
Laxatives: careful in ____ women and breastfeeding mothers | pregnant |
Laxatives: do not use with _______ or ____ -> perforation! | fecal impaction; obstruction |
Laxatives: Laxatives are categorized as: Bulk- _____, surfactant, ____, and osmotic | forming; stimulant |
Laxatives: Bulk-forming | methycellulose (citucel); psyllium (metamucil); polycarbophil (Fibercon) |
Laxatives: Bulk-forming- acts similar to dietary ____ be increasing mass of stool and water content of stooll | fiber |
Laxatives: Bulk-forming- used for ____, diverticulosis, and IBS; also used in ileostomy and colostomy patients to _____ discomfort | constipation; reduce |
Laxatives: Bulk-forming- adverse effects includes esophageal obstruction and intestinal impaction or obstruction in ___ intake is inadequate | fluid |
Laxatives: Surfactant | docusate sodium (Colace) |
Laxatives: Surfactant- acts by lowering surface tension of stool and allowing ____ to enter | water |
Laxatives: Surfactant- also acts by ___ fluid absorption into intestinal wall and stimulates secretion of water and electrolytes in the intestinal lumen | inhibiting |
Laxatives: Surfactant- take medicine with full glass of ____ | water |
Laxatives: Stimulant | bisacodyl (Dulcolax) senna (senokot) |
Laxatives: Stimulant- acts to stimulate intestinal ____ and increase amount of _____ in the intestinal lumen | mobility; water |
Laxatives: Stimulant- used to treat ____-induced constipation and slow intestinal transit | opioid |
Laxatives: Stimulant- Bisacodyl can be administered PO and PR (rectal); do not take with ____ or ____dairy products (allow 1 hour); PR use can cause proctitis | milk; dairy |
Laxatives: Stimulant- Senna may cause harmless yellowish or brown tint to ____ | urine |
Laxatives: Osmotic | milk of magnesia; polyethylene glycol (MiraLax); sodium phosphate (Fleet Phospho-Soda) |
Laxatives: Osmotic- acts by pulling ____ into the intestinal lumen | water |
Laxatives: Osmotic- Soft or semi-fluid stool occur in _____ hours | 6-12 |
Laxatives: Osmotic- higher doses can ____ bowel of ingested poisons and evacuates dead parasites | purge |
Laxatives: Osmotic- adverse effects include loss of ____ causing ____, magnesium _____, fluid_____, and acute renal ______ | water; dehydration; toxicity; retention; failure |
Laxatives: Osmotic- MiraLax may cause nausea, bloating , cramping, and ____ | gas (flatulence) |
Laxatives Abuse: many believe that a large bowel movement is warranted daily and that it is ____ to get off regular schedule | unhealthy |
Laxatives Abuse: OTC laxatives are often purchased and taken much more than needed to produce a ________ effect to "stay healthy" | bowel cleansing |
Laxatives Abuse: ____ imbalances and changes defecatory actions may occur due to chronic laxative use | electrolytes |
Laxatives Abuse: abrupt withdrawal from ___ must occur with appropriation bowel teaching and dietary habits | laxatives |