http://www.appliedradiology.com RSS Feed on Applied Radiologyhttp://www.appliedradiology.com//Issues/1998/02/Articles/Methylmalonic-acidemia-.aspxAn 18-month-old male presents with a two-day history of increasing lethargy, anorexia, and vomiting. On physical examination, he was found to be dehydrated and hypotonic, and was responsive only to painful stimuli. Kussmaul’s respirations were noted, and admission blood gases revealed metabolic acidosis (arterial pH of 7.24). Serum chemistries revealed a serum ammonia level of 147 umole/l.Tuesday, 26 Sep 2000 13:56:25 GMT