Accepted for publication Aug 6, 1980.
Reprint requests to Division of Neurology (RG-20), Department of Medicine, University of Washington, Seattle, WA 98195 (Dr Ruff).
The unusual complication of a spurious elevation of the serum chloride value developed during pyridostigmine bromide (Mestinon) treatment.
REPORT OF A CASE A 77-year-old man with myasthenia gravis was admitted to The New York Hospital-Cornell Medical Center because of respiratory difficulty. He had been taking 1,260 mg of pyridostigmine bromide daily for six months. He did not take any other medication containing bromide. Multiple determinations of his serum electrolyte values with the use of a standard ion-selective electrode technique (Stat/Ion) indicated chloride values of 119 to 157 mEq/L with corresponding anion gaps of —8 to —47. The ion-selective electrode was checked and was functioning properly. An electrolyte determination using the same technique before the patient received pyridostigmine bromide had given normal values. His serum was analyzed for halides with specific colorimetric techniques. The actual chloride level was 109 mEq/L and the bromide value was 2.1 mEq/L. The ion-selective electrode indicated
Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
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