Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 3

Leaving excess urine on the reagent strip after removing it from the specimen will:

A. Cause run-over between reagent pads

B. Alter the color of the specimen

C. Cause reagents to leach from the pads

D. Not affect the chemical reactions

Step 1 of 2

Reagent strip:

Reagent strips have pads which are absorbent and made of plastic.

• Chemical reaction will take place between the chemical in the pad and the urine placed on it.

• Referring the chart given by the manufacturer, the colors are noted.

• Reagent strip should be taken out from the specimen (urine) once it is dipped into it. Excess of urine in the strip is cleared by keeping the strip in the corner of the container for draining.

• If the urine remains in the strip after taking out from the specimen, it causes run-over between adjacent reagent pads leading to alteration of colors.

Therefore, after the removal of reagent strip from the specimen, when leftover urine is there, it causes “run-over between reagents strips”. Hence, the correct answer is option .