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- Hojer, J
(författare)
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Severe metabolic acidosis in the alcoholic: differential diagnosis and management
- 1996
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Ingår i: Human & experimental toxicology. - : SAGE Publications. - 0960-3271 .- 1477-0903. ; 15:6, s. 482-488
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Tidskriftsartikel (refereegranskat)abstract
- 1 A chronic alcoholic with severe metabolic acidosis presents a difficult diagnostic problem. The most common cause is alcoholic ketoacidosis, a syndrome with a typical history but often misleading laboratory findings. This paper will focus on this important and probably underdiagnosed syndrome. 2 The disorder occurs in alcoholics who have had a heavy drinking-bout culminating in severe vomiting, with resulting dehydration, starvation, and then a β- hydroxybutyrate dominated ketoacidosis. 3 Awareness of this syndrome, thorough history-taking, physical examination and routine laboratory analyses will usually lead to a correct diagnosis. 4 The treatment is simply replacement of fluid, glucose, electrolytes and thiamine. Insulin or alkali should be avoided. 5 The most important differential diagnoses are diabetic ketoacidosis, lactic acidosis and salicylate, methanol or ethylene glycol poisoning, conditions which require quite different treatment. 6 The diagnostic management of unclear cases should always include toxicological tests, urine microscopy for calcium oxalate crystals and calculation of the serum anion and osmolal gaps. 7 It is suggested here, however, that the value of the osmolal gap should be considered against a higher reference limit than has previously been recom mended. An osmolal gap above 25 mosm/kg, in a patient with an increased anion gap acidosis, is a strong indicator of methanol or ethylene glycol intoxication.
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