Which factor associated with aging increases the risk of gastric irritation from nonsteroidal anti-inflammatory drugs (NSAIDS) in older adults?.

Choice A rationale: Decreased splanchnic blood flow can affect drug absorption and metabolism, but it does not directly increase the risk of gastric irritation from NSAIDs. Choice B rationale: Prolonged secretion of gastric acid can contribute to conditions like gastroesophageal reflux disease (GERD), but it is not the primary factor increasing the risk of gastric irritation from NSAIDs in older adults. Choice C rationale: Delayed gastric emptying is the correct answer. It allows drugs to stay in contact with the stomach lining for a longer time, which can increase the risk of gastric irritation from NSAIDs. Choice D rationale: Loss of cells from the gastric plexus can affect gastric function, but it is not directly linked to an increased risk of gastric irritation from NSAIDs.