• Khizer Rizvi, Stanley Abraham, Jonathan Gong, and Joshua Nogar.
• Department of Emergency Medicine, Long Island Jewish Medical Center, New Hyde Park, New York, United States of America. Electronic address: Khizer.rizvi@gmail.com.
• Am J Emerg Med. 2024 Feb 1; 76: 273.e5273.e7273.e5-273.e7.

AbstractConsumption of alkaline electrolyzed water (AEW) has become increasingly popular for consumer use. Although these alkaline water products are now commonly used, they are of questionable health benefit. Some individuals believe that it may help their dyspepsia. Furthermore, there is a paucity of evidence on its toxicologic profile and adverse effects. This is a single case report of a 42-year-old female with a past medical history of gestational diabetes, necrotizing pancreatitis, presented to the Emergency Department for 3 weeks of lethargy, weakness, difficulty walking, and vomiting. She endorsed consuming 5  liters (L) of alkaline water daily for the past month. Initial labs showed pH 7.69, potassium 1.6meQ/L, sodium 133 meQ/L, chloride 65 mmol/L, magnesium 0.9 meQ/L, and bicarbonate 46 mmol/L, and lactate of 13.2 mmol/L. EKG showed sinus tachycardia with QTc of 630 milliseconds. Patient was treated supportively with intravenous fluids and electrolyte replacement. The potassium rose to 6.6 meQ/L, which then the patient was treated for hyperkalemia. After four days of intravenous fluid and electrolyte replacement, the patient's electrolytes and acid-base status normalized, and she was transferred to the medical floors for further management. This case report illustrates severe metabolic alkalosis and hypokalemia in the setting of chronic alkaline water exposure. It also is an example of alkalemia with hyperlactatemia, or "lactic alkalosis". To our knowledge, there is no previous literature reporting serious adverse effects of alkaline bottled water products.Copyright © 2023 Elsevier Inc. All rights reserved.

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