A nurse is teaching a class about medication interactions.
The nurse should include that iron preparations should be administered with which of the following?
Cheese.
Antacids containing magnesium.
Orange juice.
Milk.
The Correct Answer is C
Choice A rationale
Cheese is high in calcium, which can interfere with the absorption of iron by binding to it in the digestive tract, making it less available for absorption.
Choice B rationale
Antacids containing magnesium can interfere with the absorption of iron by increasing the pH of the stomach, reducing the solubility and absorption of iron.
Choice C rationale
Orange juice is high in vitamin C, which can enhance the absorption of iron by reducing it to a form that is more easily absorbed by the body.
Choice D rationale
Milk contains calcium, which can inhibit the absorption of iron. Calcium competes with iron for absorption in the intestines, leading to reduced iron absorption.
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Correct Answer is C
Explanation
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.
Correct Answer is D
Explanation
Choice A rationale
Hypothermia is not commonly associated with diarrhea. Diarrhea typically leads to fluid loss and dehydration rather than changes in body temperature.
Choice B rationale
A rigid abdomen is not a typical finding for diarrhea. It may indicate other gastrointestinal issues, such as peritonitis, rather than dehydration caused by diarrhea.
Choice C rationale
Decreased bowel sounds are not typically expected with diarrhea, which often presents with increased bowel sounds due to increased motility.
Choice D rationale
Dehydration is a common finding in clients with diarrhea due to the excessive loss of fluids and electrolytes from frequent, loose stools. It can lead to symptoms such as dry mouth, reduced urine output, and dizziness.