A cardiac biomarker designated as "Y" is the biomarker whose basic test principle is determined by immunoinhibition that allows blocking of one isotope of the "Y" iso-enzyme found in patient samples not to react with a blocking reagent while allowingonly the other component to react with the reagent forming NADH that is directly proportional to the activity of the iso-enzyme of the biomarker presentin patient samples and measured spectrophotometrically at 340nm. Which cardiac biomarker is best principled based on the above given information? a. CK-MM b. LDH1 c. CK-BB d. CK-MB
