Which of the following best explains the mechanism of action for lactulose in alleviating constipation? A) Degrades fermentable sugars to facilitate quicker bowel movements B) Incr... Which of the following best explains the mechanism of action for lactulose in alleviating constipation? A) Degrades fermentable sugars to facilitate quicker bowel movements B) Increases colonic motility by irritating luminal nerves C) Utilizes trapped ammonia as a nitrogen source for protein synthesis to enhance stool formation D) Forms hydrogen bonds with water to prevent absorption, producing a softer stool
Understand the Problem
The question is asking for the best explanation of how lactulose works to relieve constipation among the given options. It requires an understanding of the pharmacological effects of lactulose.
Answer
Forms hydrogen bonds with water to prevent absorption, producing a softer stool
Forms hydrogen bonds with water to prevent absorption, producing a softer stool
Answer for screen readers
Forms hydrogen bonds with water to prevent absorption, producing a softer stool
More Information
Lactulose works by drawing water into the colon, which both softens stools and helps stimulate bowel movements. This is a characteristic of osmotic laxatives.
Tips
A common mistake is assuming lactulose works by directly stimulating nerve endings, similar to stimulant laxatives. Lactulose is an osmotic laxative, which acts by increasing stool water content.
Sources
- Lactulose - Wikipedia - en.wikipedia.org
- Comparative Evaluation of Lactulose and Bisacodyl in the... - behmedicalbulletin.org