Chapter 39: Constipation

Question 1

Laxatives (lubricant)

Answer 1

lubricates the fecal mass and
slows colonic absorption of water from the fecal mass

Question 2

Laxatives (surfactant)

Answer 2

decrease the surface tension of the fecal mass to allow water to penetrate the stool.

Also act as a detergent to facilitate the admixing of fat and water in the stool

Question 3

Laxatives (bulk-forming)

Answer 3

add mass to the feces, stimulating peristalsis and
defecation.

must be taken with water to avoid obstruction

Question 4

Laxatives (pt teaching)

Answer 4

Eat foods that are high in fiber, consume a large volume of
fluids

Having a BM routine is
good practice, exercise will help as well

Laxative and cathartics use should
be temporary and not regular