Severe metabolic alkalosis with fludrocortisone therapy—a case report

Abstract. Background. We present an atypical case of severe metabolic alkalosis, not reported in the literature to date. Case Presentation. Owing to concerns of apneas and desaturation, a 75-year-old man presented to the emergency department with significantly deranged physiology: bicarbonate level...

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Bibliographic Details
Main Authors: Grace Williams, Honor Hinxman
Format: Article
Language:English
Published: Wolters Kluwer Health/LWW 2025-03-01
Series:Emergency and Critical Care Medicine
Online Access:http://journals.lww.com/10.1097/EC9.0000000000000124
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Summary:Abstract. Background. We present an atypical case of severe metabolic alkalosis, not reported in the literature to date. Case Presentation. Owing to concerns of apneas and desaturation, a 75-year-old man presented to the emergency department with significantly deranged physiology: bicarbonate level of 63.6 mmol/L, a base excess of 40.6, and a potassium concentration of 1.9 mmol/L. Primary diagnoses included metabolic alkalosis secondary to fludrocortisone therapy with respiratory compensation, hypokalemia, and hypochloremia. He initially received potassium replacement with cardiac monitoring, followed by permissive hypercapnia in the intensive care unit. He received acetazolamide to further improve his acid-base status. The patient had a good outcome with gradual return of his pH and bicarbonate levels to baseline. He was then discharged. Conclusion. Iatrogenic mineralocorticoid excess should be considered when the patient presents with significantly raised bicarbonate levels. When starting fludrocortisone, renal function needs to be diligently monitored due to risk of hypokalemia metabolic alkalosis.
ISSN:2097-0617
2693-860X