<prompt> Diagnostic Troponin I value for MyoCardial infarction is?O.2ngmLO.4ngmlO.6 ngmLO.8ngmL  <response>: TnI and TnT normally are not found in the circulation however after acute MI, both are dectectable within 2-4 hr with levels peaking at 48hrs and remaining elevated for 7 to 10 days Robbins 9 th edition page no. 383 