A nurse is reinforcing teaching with a newly licensed nurse about physiological changes in the digestive system that occur with aging. The nurse should include that older adults might experience which of the following physiological changes?
Decreased intestinal peristalsis
Decreased pH of the stomach
Increased muscle tone of the bowel
Increased gastric acid production
The Correct Answer is A
Choice A reason: With aging, there is a slight slowing in the movement of contents through the large intestine and a modest decrease in the contractions of the rectum when filled with stool, leading to decreased intestinal peristalsis.
Choice B reason: Aging does not typically result in a decreased pH of the stomach. Instead, conditions that decrease acid secretion, such as atrophic gastritis, become more common with age.
Choice C reason: Increased muscle tone of the bowel is not a change associated with aging. In fact, muscle tone may decrease, contributing to issues such as constipation.
Choice D reason: Increased gastric acid production is not a typical physiological change with aging. The secretion of stomach juices such as acid and pepsin has little effect on aging, although conditions that decrease acid secretion become more common.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Fats help in the absorption of fat-soluble vitamins (A, D, E, and K), which is essential for various bodily functions.
Choice B reason: While fats are involved in the makeup of myelin that insulates nerve cells, they do not directly
regulate nerve cell transmission.
Choice C reason: Fats do not convert to sugar; they are broken down into fatty acids and glycerol to provide energy.
Choice D reason: Proteins are primarily responsible for building and repairing tissues, not fats.
Correct Answer is D
Explanation
Choice A reason: Memory loss is not typically associated with a lack of dietary fiber. Memory loss can be related to various neurological or psychological conditions.
Choice B reason: Bleeding gums are commonly associated with vitamin C deficiency, not a lack of dietary fiber.
Choice C reason: Brittle hair can be associated with poor nutrition in general, but it is not a specific indicator of inadequate fiber intake.
Choice D reason: Constipation is a well-known symptom of inadequate fiber intake. Fiber helps to bulk up the stool
and promotes regular bowel movements.
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