Which statements about bulk-forming laxative drugs are accurate?
Standard Text: Select all that apply.
1. They work immediately after one dose.
2. They are contraindicated when the client has undiagnosed abdominal pain, suspected intestinal obstruction, or fecal impaction.
3. They must be taken with plenty of water, or they can cause an esophageal obstruction.
4. The prototype of bulk-forming laxatives is milk of magnesia.
5. Bulk-forming laxative powder should never be taken dry.
Correct Answer: 2,3,5
Rationale 1: Bulk-forming laxatives increase the size of the fecal mass and stimulate defecation. Several doses of psyllium might be needed over 1–3 days to produce an optimum therapeutic effect.
Rationale 2: Bulk-forming laxatives are contraindicated when the client has undiagnosed abdominal pain, suspected intestinal obstruction, or fecal impaction.
Rationale 3: Bulk-forming laxatives must be taken with plenty of water; otherwise, psyllium could swell in the esophagus and cause an obstruction.
Rationale 4: The prototype of bulk-forming laxative drugs is psyllium mucilloid.
Rationale 5: Powders should never be swallowed dry, or esophageal obstruction may result.
Global Rationale: Bulk-forming laxatives increase the size of the fecal mass and stimulate defecation. Several doses of psyllium might be needed over 1–3 days to produce an optimum therapeutic effect. They must be taken with plenty of water; otherwise, psyllium could swell in the esophagus and cause an obstruction. The prototype of bulk-forming laxative drugs is psyllium mucilloid. Bulk-forming laxatives are contraindicated when the client has undiagnosed abdominal pain, suspected intestinal obstruction, or fecal impaction. Powders should never be swallowed dry, or esophageal obstruction may result.
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