<prompt> An obese lady aged 45 years, was brought to emergency in a semi comatose condition. The laboratory investigations showed K 5.8 mmolL; Na 136 mmolL; blood pH 7.1, HC03 12 mmolL, ketone bodies 350 mgdl. The expected level of blood glucose for this lady is:45 mgdl.120 mgdl.180 mgdl.75 mgdl.  <response>: Ans. is c i.e. 180 mg dL Metabolic acidosis pH 7.1 and HCO3 12 mmol1 presence of ketone bodies and increased potassium Normal 3.5 mmol1 to 5 mmolL favours the diagnoses of diabetic ketoacidosis.Diabetic ketoacidosis occurs when the serum glucose level is around 300-600 mgdlNote: For every 100mg elevation of glucose in serum the Na concentration decreases by 3 meq. 