Douglas S. Paauw, MD


June 08, 2016

Case Presentation

A 45-year-old man presents with nausea and weakness 6 hours after arthroscopic surgery to repair a meniscal tear. He has a 2-year history of well-controlled type 2 diabetes and bipolar disorder. His current medications are metformin, sitagliptin, canagliflozin, rosuvastatin, and lithium.

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Results from a comprehensive metabolic panel are:

  • Sodium: 136 mEq/L

  • Potassium: 3.5 mEq/L

  • Chloride: 100 mEq/L

  • Bicarbonate: 12 mEq/L

  • Glucose: 120 mg/dL

  • Blood urea nitrogen: 20 mg/dL

  • Creatinine: 1.1 mg/dL


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