In the measurement of urea,urea is initially hydrolyzed by urease to form ammonium ions.This assay combined with the spectrophotometric measurement of the resulting ammonia is referred to as the:

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The mentioned method involves the hydrolysis of urea by urease to form ammonium ions which are then measured using spectrophotometric measurement to determine ammonia. This method is commonly known as the Berthelot reaction. Option A is incorrect as it refers to a different method that measures ammonia using a selective electrode. The Jaffe reaction (option C) is a colorimetric method performed on serum or plasma to measure creatinine levels, not urea. Option D is too generic and does not refer to a specific method.

In the Measurement of Urea,urea Is Initially Hydrolyzed by Urease