A physical therapist is assessing a 45-year-old male patient who has been diagnosed with end-stage renal disease (ESRD). During a routine check-up, the patient’s bloodwork revealed potassium serum levels of 6.8 mEq/L. Which of the following is the MOST likely explanation for this elevated potassium level?
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✓ Correct answer: D. Kidney diseaseAnswer: Kidney disease
The normal potassium serum level is 3.5 to 5.5 mEq/L. Potassium levels above 5.5 mEq/L indicate hyperkalemia. Kidney disease, particularly end-stage renal disease (ESRD), is a common cause of hyperkalemia. Other conditions associated with hyperkalemia include metabolic acidosis and diabetic ketoacidosis. In contrast, renal tubular disease, alkalosis, and diarrhea are conditions typically associated with hypokalemia, or low potassium levels.
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