A nurse is teaching a newly licensed nurse about physiological changes in the digestive system that occur with aging.
The nurse should include older adults might experience which of the following physiological changes?
Increased muscle tone of the bowel.
Increased gastric acid production.
Decreased pH of the stomach.
Decreased intestinal peristalsis.
The Correct Answer is D
Choice A rationale
Aging usually leads to a decrease in muscle tone of the bowel rather than an increase, which can result in slower bowel movements and constipation.
Choice B rationale
Gastric acid production tends to decrease with age, not increase. This can affect the digestion and absorption of nutrients, and also increase the risk of stomach infections.
Choice C rationale
The pH of the stomach tends to become less acidic (increase) as one ages, not decrease. This is often due to the reduced production of gastric acid.
Choice D rationale
Decreased intestinal peristalsis is a common physiological change in older adults. This slowing down of the intestinal movements can lead to constipation and other digestive issues.
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Correct Answer is A
Explanation
Choice A rationale
Reflex incontinence is caused by neurological impairment or damage, such as spinal cord injury, which results in a loss of voluntary control over urination. The bladder muscle contracts involuntarily, causing urine leakage.
Choice B rationale
Overflow incontinence occurs when the bladder cannot empty properly, leading to frequent or constant dribbling of urine. It is not typically associated with nerve damage from spinal cord injury.
Choice C rationale
Stress incontinence is caused by physical movement or activity—such as coughing, sneezing, or heavy lifting—that puts pressure on the bladder, leading to urine leakage. It is not related to nerve damage or neurological conditions.
Choice D rationale
Urge incontinence is characterized by a sudden, intense urge to urinate, followed by involuntary urine leakage. It is usually caused by an overactive bladder or other conditions affecting bladder function, but not directly by nerve damage from spinal cord injury.
Correct Answer is B
Explanation
Choice A rationale
White rice is a low-fiber food that is usually recommended to help manage diarrhea, as it can help firm up stools.
Choice B rationale
Caffeinated beverages can increase intestinal motility and secretions, leading to diarrhea. They can also be irritating to the gastrointestinal tract.
Choice C rationale
Low-fiber cereals are less likely to cause diarrhea and are often recommended for those with diarrhea because they are easy to digest.
Choice D rationale
Ripe bananas are low in fiber and high in potassium, which is beneficial for those with diarrhea as they help in firming up the stool.