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A 62-year-old female presented to the emergency department (ED) with fatigue and generalized body weakness for the last three days. Upon arrival, initial ECG showed wide complex tachycardia with sine waves and a heart rate (HR) ranging between 100-170 bpm. She was otherwise vitally stable. The patient had a past medical history of hyperaldosteronism, type 2 diabetes mellitus (DM), chronic kidney disease (CKD) with microalbuminuria, and hypertension. She also had a history of cerebrovascular accident (CVA) and residual left-sided weakness more pronounced in the upper limb. Initial venous blood gas (VBG) analysis showed a potassium level of more than 10 mmol/L, chloride 114 mmol/L, bicarbonate 9 mmol/L, sodium 135 mmol/L, and pH of 7.1. Treatment for hyperkalemia was started immediately with calcium gluconate 1 gm that effectively narrowed her QRS complex and normalized her ECG. Salbutamol nebulization, glucose/insulin infusion, and calcium polystyrene syrup were given. Later, she was started on 100 mg sodium bicarbonate infusion, and Foley’s catheter was inserted to follow urine output (UOP) strictly. However, she did not show a decrease in serum potassium levels. Then the patient underwent hemodialysis for two hours. Her first potassium reading after hemodialysis was 5.2 mmol/L. The purpose of this case report is to emphasize the importance of hemodialysis in patients with persistent severe life-threatening hyperkalemia.

Severe Persistent Hyperkalemia with Electrocardiogram Changes in a Patient with Hyperaldosteronism