A nurse is teaching a newly licensed nurse about the function of the large intestine.
Which of the following information should the nurse include?
It produces vitamin D.
It prevents the reflux of food into the esophagus.
It absorbs liquid to form stool.
It secretes enzymes to digest food.
The Correct Answer is C
Choice C rationale
The large intestine absorbs water and electrolytes from the remaining indigestible food matter, forming and eliminating solid waste (stool). This absorption process is vital for
maintaining the body's fluid and electrolyte balance.
Choice A rationale
The large intestine does not produce vitamin D; this occurs in the skin when exposed to sunlight. The large intestine’s primary functions are absorption and waste formation.
Choice B rationale
Preventing the reflux of food into the esophagus is the function of the lower esophageal sphincter, not the large intestine. The large intestine deals with waste processing rather than regulating esophageal function.
Choice D rationale
The secretion of digestive enzymes is a function of the pancreas, stomach, and small intestine. The large intestine does not secrete enzymes but focuses on absorbing water and electrolytes.
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Correct Answer is C
Explanation
Choice A rationale
The end of the stoma is typically not painful after the procedure. Pain at the stoma site could indicate complications such as infection or ischemia.
Choice B rationale
A healthy stoma should be pink or red in color. A purple color could indicate compromised blood flow or other complications that require medical attention.
Choice C rationale
The stoma is typically placed in the right lower abdomen to allow for easier management and care, as it is usually associated with the terminal ileum.
Choice D rationale
After an ileostomy, the stool is usually liquid to semi-formed, not solid, because the colon, which absorbs water to solidify stool, is bypassed.
Correct Answer is D
Explanation
Choice A rationale
A sigmoid colostomy usually produces stool that is more formed compared to an ileostomy. This is because the colostomy is created from the sigmoid colon, where water absorption occurs.
Choice B rationale
The stoma should not be painful after the procedure. Pain may indicate complications, and the stoma itself lacks nerve endings.
Choice C rationale
The stoma should be a bright red or pink color, indicating good blood supply. A purple color could suggest ischemia or poor blood flow.
Choice D rationale
A sigmoid colostomy is typically located in the left lower abdomen because the sigmoid colon is situated in this area of the body.