Question

A patient walks into the ER complaining of constant urination and increased thirst. You ask for a sample of urine to run various urinalysis tests. While doing the glucose test, the solution turns red once the reagent is added (indicating a high concentration of glucose in the urine or "glucosuria"). What reagent was used during this urinalysis test?

a)Biuret reagent
b)Benedict's reagent
c)Fenton's reagent
d)Millon's reagent

Answer 1

Benedict's reagent is used to detect the presence of glucose in urine, and a red color change indicates glucosuria, which is often associated with diabetes mellitus.

Step-by-step explanation:

The reagent used during the urinalysis test that turns red upon detecting a high concentration of glucose is Benedict's reagent. The presence of glucose in the urine, known as glucosuria, may suggest the patient has diabetes mellitus. Benedict's test is a preliminary method for detecting this condition. If Benedict's test is positive, further blood sugar tests are performed to confirm diabetes mellitus. The color of the precipitate indicates the approximate amount of reducing sugar present, with a brick red precipitate indicating a high percentage, generally over 2% glucose concentration.