<prompt> A 60-year old man, weighing 60 Kgs, has a plasma creatinine value of 3 mgdL. How much is his creatinine clearance?22 mLmin44 mLmin66 mLmin88 mLmin  <response>: Cockroft Gault formula :- Ccr x 0.85 in females72 X Pcr Putting the given values into the equation, Ccr 72 X 3 Ccr22.22 mLmin. 