A 36-year-old man who works at an explosives factory comes to the clinic for an annual check-up. He is concerned about long-term exposure to industrial chemicals. He reports that although he is in excellent health otherwise, he experiences headaches, dizziness, and palpitations every Monday. Laboratory tests results: Na + : 137 mEq/L K + : 3.4 mEq/L Cl – : 102 mEq/L HCO 3 – : 24 mEq/L Blood urea nitrogen: 12 mg/dL Creatinine: 1.0 mg/dL WBC count: 8000/mm3 Platelet count: 310,000/mm3 Hematocrit: 46% Hemoglobin: 15 g/dL An ECG shows normal sinus rhythm with no Q wave changes.

What is the most likely serious complication that can occur as a result of his exposure? * This case if from Docplexus editorial team for education purpose only. Source: Free Medical MCQs