A nurse is assessing a client who has hyperkalemia. Which of the following findings should the nurse expect?

A. Muscle weakness: Hyperkalemia disrupts normal muscle cell function by affecting membrane excitability, leading to symptoms like muscle weakness or even paralysis in severe cases. It is one of the hallmark signs of elevated potassium levels. B. Oliguria: While hyperkalemia may be associated with renal impairment, oliguria is not a direct manifestation of high potassium but rather a possible contributing factor. It is not specific to hyperkalemia itself. C. Hypoactive bowel sounds: Increased potassium levels typically cause hyperactivity of the gastrointestinal tract, leading to hyperactive bowel sounds and cramping, not reduced or hypoactive activity. D. Hypertension: Hyperkalemia more commonly results in hypotension due to its effects on cardiac conduction and vasculature. Hypertension is not a typical manifestation of elevated serum potassium.