This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diabetes Mellitus, Subject name: Medicine
Which is best for asceaining glycemic control in bronze diabetes? 
Select and explain. 
A. Urine dipstick (DIASTIX), B. Serum fructosamine, C. Glycosylated haemoglobin, D. OGTT
B: Serum fructosamine
Answer: B: Serum fructosamine 
Explanation: Serum fructosamine is formed due to non-enzymatic glycosylation of serum proteins mainly albumin. It represents glycemic control for preceding 1-2 weeks. Normal values are 200-285mcmol/L. Advantages of serum fructosamine are: Useful in Haemolytic states which affect interpretation of glycosylated haemoglobin. Evaluation of glycemic control at the time of conception in a woman with pre-existing diabetes mellitus. Note that option 3 and 5 denote the same entity