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Author Question: A patient is concerned about intermittent constipation and is confused about all the laxatives that ... (Read 18 times)

rlane42

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on: Jul 22, 2018
A patient is concerned about intermittent constipation and is confused about all the laxatives that are available. One of the laxatives that the patient has used in the past was mineral oil.
 
  The nurse explains that this type of laxative is an example of a(n) _____ laxative. a. stimulant
  b. osmotic agent
  c. emollient
  d. lubricant

Question 2

A student nurse is assisting with colon cancer screening at the local health care clinic. The student is completing fecal occult blood testing on the stool specimens. This test is also referred to as a(n) _____ test.
 
  a. melena
  b. guaiac
  c. amylase
  d. alkaline phosphatase


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raili21

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Reply #1 on: Jul 22, 2018
Answer to Question 1

D
Cathartics are classified by the method by which the agent promotes defecation. Stimulant cathartics cause local irritation to the intestinal mucosa, increase intestinal motility, and inhibit reabsorption of water in the large intestine. Saline or osmotic agents contain a salt preparation that the intestines do not absorb. The cathartic draws water into the fecal mass. This osmotic action increases the bulk of the intestinal contents and enhances lubrication. Emollient or wetting agents are detergents and act as stool softeners to lower the surface tension of feces, allowing water and fat to penetrate the fecal material. Bulk-forming cathartics absorb water and increase solid intestinal bulk. The fecal bulk stretches the intestinal walls, stimulating peristalsis. Lubricants soften the fecal mass, thus easing the strain of defecation. The only lubricant laxative available is mineral oil.

Answer to Question 2

B
A common test is the fecal occult blood test (FOBT) or guaiac test, which measures microscopic amounts of blood in the feces. It is a useful screening test for colon cancer. Melena refers to blood in the stool that causes stool to turn black and sticky. Amylase and alkaline phosphatase are blood tests.


rlane42

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Reply 2 on: Jul 22, 2018
Thanks for the timely response, appreciate it

rachel

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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