Transcription of Creatinine iSTAT methodology sheet - UCSF Departments of ...
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Creatinine iSTAT methodology sheet - UCSF Departments of ...
ucsf Clinical Labs Page 1 of 6 Proc/ iSTAT /Creat. Creatinine is measured amperometrically. Creatinine is hydrolyzed to creatine in a reaction catalyzed by the enzyme Creatinine amidohydrolase. Creatine is then hydrolyzed to sarcosine in a reaction catalyzed by the enzyme creatine amidinohydrolase. The oxidation of sarcosine, catalyzed by the enzyme sarcosine oxidase, produces hydrogen peroxide (H2O2). The liberated hydrogen peroxide is oxidized at the platinum electrode to produce a current which is proportional to the sample Creatinine concentration. See below for information on factors affecting results. Certain substances, such as drugs, may affect analyte levels in If results appear inconsistent with the clinical assessment, the patient sample should be retested using another cartridge.
UCSF Clinical Labs Page 3 of 6 Proc/iSTAT/Creat. Precision data were collected in multiple sites as follows3: Duplicates of each control fluid were tested in the morning and in the afternoon on five days for a …
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