31. :For a simple example, see creatinine . 32. For example, I am pulling serum creatinine values from a public health database. 33. :What kind of serum creatinine level gets you a result like that ?? 34. Clinical chemistry lab testing utilizes picric acid for the Jaffe reaction to test for creatinine . 35. Negr�n encouraged Ochoa and another student, Jos?Valdecasas, to isolate creatinine from urine. 36. Creatinine was first synthesized " in vitro " by Ivan Horbaczewski in 1885.37. _Levels in the urine of a substance called creatinine , a measure of kidney function. 38. Her creatinine was 3.7; normal is 0.1-0.6. 39. Blood creatinine levels may also be used alone to calculate the estimated GFR ( eGFR ). 40. The two students succeeded and also developed a method to measure small levels of muscle creatinine .
