Pyloric stenosis laboratory findings
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]
Overview
Most common laboratory findings consistent with the diagnosis of infantile pyloric stenosis and adult type pyloric stenosis include hypokalemia, hypochloremia, and metabolic alkalosis.
Laboratory Findings
Laboratory findings consistent with the diagnosis of pyloric stenosis include electrolyte imbalances such as:
- Hypokalemia
- Hypochloremia
- Metabolic alkalosis due to loss of gastric acid (which contains hydrochloric acid and potassium) via persistent vomiting; these findings can be seen with severe vomiting from any cause.