stan bio - createnine Flashcards
In ___ described a method for the determination of creatinine involving a protein free filtrate and reaction with picric acid
in alkaline solution
1886 Jaffe
This reaction is subject to interferences by a number of substances, including ___.
protein and glucose
Kinetic procedures
have become popular because they are ____
rapid, simple and avoid
interference.
The present method is based on a modification of the
automated reaction rate of ___
Fabinay and Eringshausen
Creatinine + Picric Acid =
Creatine-picrate complex
wavelenth
510 nm
___ to prepare “Working Reagent”.
Mix 1 part Creatinine Acid reagent with
1 part Creatinine Base Reagent
Creatinine Acid Reagent, Creatinine Base Reagent and Creatinine Standard are stable until the
date of their expiration when properly stored at ____
15-30°C.
Working reagent is stable for 30 days when properly stored at
___
15-30°C
do not use Working reagent if turbid.
okay puu
Creatinine values have a reported stability of
one day at ___
2-8°C
Creatinine values have a reported stability of
one day at 2-8°C, and ____ when frozen (-20°C) and protected from evaporation and contamination.
several months
Urine specimens
must be preserved with __
15 grams of boric acid
Urine is stable for
___ at room temperature (15-25°C).
4 to 7 days
seconds for calculating creatinine
20 and 60 secs
