• elevated serum potassium, low serum sodium
• low plasma cortisol (fails to respond to synthetic ACTH)
An Addisonian crisis develops because of an inability to increase cortisol in response to stress, which may include intercurrent infection, surgery or trauma. Clinical features
• nausea and vomiting
• acute abdominal pain
• severe hypotension progressing to shock
• weakness, drowsiness progressing to coma
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