What are the manifestations of hyperglycemia? (Select all that apply)
Polyuria
Polyphagia
Excessive thirst
Photophobia
Dysphagia
Correct Answer : A,B,C
Choice A reason: Hyperglycemia causes polyuria as high blood glucose exceeds renal reabsorption capacity, leading to osmotic diuresis. Excess glucose in urine draws water, increasing urine output, a classic diabetes symptom, making this a correct manifestation.
Choice B reason: Polyphagia, or increased hunger, occurs in hyperglycemia as cells cannot utilize glucose due to insulin deficiency or resistance, signaling energy deficit. The body craves food to compensate, making this a correct manifestation.
Choice C reason: Excessive thirst (polydipsia) results from hyperglycemia-induced polyuria, causing dehydration. The body signals thirst to replenish fluid loss from osmotic diuresis, a hallmark of diabetes, making this a correct manifestation.
Choice D reason: Photophobia, sensitivity to light, is not associated with hyperglycemia. It occurs in conditions like meningitis or migraines, not metabolic disturbances like diabetes, making this choice incorrect for hyperglycemia manifestations.
Choice E reason: Dysphagia, difficulty swallowing, is unrelated to hyperglycemia. It may occur in neurological or esophageal disorders, not as a direct result of high blood glucose, making this choice incorrect for hyperglycemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Poison ivy causes a type IV (cell-mediated) hypersensitivity reaction, where T-cells react to urushiol, triggering a delayed inflammatory response. This leads to dermatitis with itching and rash, making this the correct choice.
Choice B reason: Allergic hypersensitivity is a broad term, often referring to type I (IgE-mediated) reactions, like anaphylaxis. Poison ivy involves T-cell-mediated delayed hypersensitivity, not immediate allergic responses, making this choice incorrect.
Choice C reason: Immune complex hypersensitivity (type III) involves antigen-antibody complexes causing tissue damage, as in lupus. Poison ivy reactions are T-cell-driven, not immune complex-mediated, making this choice incorrect for the reaction.
Choice D reason: Cytotoxic hypersensitivity (type II) involves antibodies attacking cell surface antigens, as in hemolytic anemia. Poison ivy causes a T-cell-mediated skin reaction, not antibody-driven cytotoxicity, making this choice incorrect.
Correct Answer is C
Explanation
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.
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