Child of 6 months, body mass at birth 3000g, length-50cm. From 3 months on artificial feeding with cow's milk, rarely receives vegetable soup; feeds 4 times a day. Food tolerance is maintained....

Child of 6 months, body mass at birth 3000g, length-50cm. From 3 months on artificial feeding with cow's milk, rarely receives vegetable soup; feeds 4 times a day. Food tolerance is maintained. Admitted to the hospital with body mass 5700g., length 56 cm.

1.Make a diagnosis.

2. Establish plan of investigation..