This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
In hypersmolar hyperglycemic non ketotic coma the blood glucose level is around - 
Select and explain. 
A. 55mmol\/l, B. 20mmol\/l, C. 80mmol\/l, D. 5mmol\/l
A: 55mmol\/l
Answer: A: 55mmol\/l 
Explanation: The laboratory features in HHS are marked hyperglycemia (plasma glucose may be >55.5 mmol/L ), hyperosmolality (>350 mosmol/L), and prerenal azotemia. In contrast to DKA, acidosis and ketonemia are absent or mild. Reference : page 2420 Harrison's Principles of Internal Medicine 19th edition