What type of diarrhea is described as greasy and foul-smelling, and often occurs in people with malabsorption disorders?
Melena
Small-volume diarrhea
Steatorrhea
Osmotic diarrhea
The Correct Answer is C
Choice A reason: Melena is dark, tarry stool due to upper gastrointestinal bleeding, not greasy or foul-smelling from malabsorption. It results from digested blood, not fat malabsorption, making this choice incorrect for the described diarrhea.
Choice B reason: Small-volume diarrhea is typically due to inflammation, like in inflammatory bowel disease, not malabsorption. It lacks the greasy, foul-smelling quality of fat malabsorption, making this choice incorrect for malabsorption-related diarrhea.
Choice C reason: Steatorrhea is greasy, foul-smelling diarrhea caused by fat malabsorption, common in disorders like celiac disease or pancreatic insufficiency. Undigested fats in stool cause its characteristic appearance and odor, making this the correct choice.
Choice D reason: Osmotic diarrhea results from unabsorbed solutes, like lactose intolerance, causing watery stools, not specifically greasy or foul-smelling. It lacks the fat content of steatorrhea, making this choice incorrect for malabsorption diarrhea.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Genetic mutations causing insulin resistance describe type 2 diabetes. Type 1 diabetes results from autoimmune destruction of beta cells, leading to absolute insulin deficiency, not resistance, making this choice incorrect.
Choice B reason: Excessive carbohydrate intake does not cause type 1 diabetes, which is autoimmune. It may exacerbate hyperglycemia in diabetes but is not the primary cause, making this choice incorrect.
Choice C reason: Pancreatic damage from alcohol can cause pancreatitis, not type 1 diabetes. Type 1 is autoimmune, destroying insulin-producing beta cells, unrelated to alcohol-induced damage, making this choice incorrect.
Choice D reason: Type 1 diabetes is caused by autoimmune destruction of pancreatic beta cells, leading to absolute insulin deficiency. Autoantibodies target beta cells, causing hyperglycemia, making this the correct pathophysiological cause.
Correct Answer is C
Explanation
Choice A reason: Acidosis does not enhance gastrointestinal potassium absorption. Hyperkalemia in acidosis results from cellular shifts, not increased absorption, as hydrogen ions affect potassium movement, making this choice incorrect.
Choice B reason: Acidosis does not increase renal potassium excretion; it causes hyperkalemia by shifting potassium out of cells. Hypokalemia may occur in alkalosis, not acidosis, making this choice incorrect.
Choice C reason: Acidosis causes hyperkalemia as excess hydrogen ions enter cells to buffer pH, displacing potassium into the bloodstream. This cellular shift elevates serum potassium, making this the correct choice.
Choice D reason: Acidosis promotes potassium release from cells, not uptake, causing hyperkalemia. Hypokalemia occurs in alkalosis, where potassium enters cells, making this choice incorrect for acidosis effects.
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