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Question 7A patient with metastatic prostate cancer develops confusion, lethargy, and constipation. Which electrolyte abnormality is most likely responsible?A. HyponatremiaB. HyperkalemiaC. HypercalcemiaD. HypomagnesemiaE. HypophosphatemiaAnswer: HypercalcemiaExplanation: Hypercalcemia is a common paraneoplastic syndrome in metastatic cancers, particularly prostate cancer. It can cause confusion, lethargy, and constipation.
