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
Which of the following is the single MOST sensitive status for evaluating body iron status?
assistant
The correct answer is  The single most sensitive indicator of body iron status is serum ferritin level. Levels of < 10 mcg/ L indicates iron deficiency. Ref: Park 21st edition, page 576.