system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
What is the best prognostic indicator of multiple myeloma at the time of diagnosis ?
assistant
The correct answer is  Ans. is 'b' i.e., Beta-2 Microglobulins o Serum /32 microglobulin is the single most powerful predictor of survival and can substitute for staging.P2 Microglobulin level :< .004g/L Median survival of 43 months.> .004 g/L Median survival of only 12 months.