This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'The minimum level of TSH that can he detected by TSH assay of the third generation thyroid function tests is which of the following? \nSelect and explain. \nA. 0.4 lU/ml, B. 0.04 IU/ml, C. 0.004 lU/ml, D. 4 IU/ml', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Functional sensitivities for three generations of TSH assays: First generation: Functional sensitivity is 1-2 IU/mL Second generation: Functional sensitivity is 0.1-0.2 IU/mL Third generation: Functional sensitivity is 0.01-0.02 IU/mL Among the options more appropriate is 0.04 IU/mL Ref: Aicle: Evolution of TSH Assays: A Third Generation Viewpoint', 'role': 'assistant'}]