investigations

Last reviewed 01/2018

Typically the biochemical profile is hypoketotic hypoglycaemia; the patient being unable to make ketones despite being hypoglycaemic. There are also derrangements in liver function and other blood indices.

There is a characteristic pattern of dicarboxylic acids in the urine.

Diagnosis is made by measuring enzyme activity in fibroblast culture (from skin biopsy). In 90% of patients there is the same G985 mutation on chromosome one.