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

Exercise 71

The purpose of the special mat supplied with the Ictotest tablets is that:

A. Bilirubin remains on the surface of the mat.

B. It contains the dye needed to produce color.

C. It removes interfering substances.

D. Bilirubin is absorbed into the mat.

Step 1 of 2

Ictotest:

Ictotest is the bilirubin confirmatory test.

• Ictotest has ictotest kits which contains testing mats and tablets.

• The tablets and mats contain p-nitrobenzine-diazonium-p-toluenesulfonate, sodium carbonate, SSA (sulfosalicylic acid) and boric acid.

Procedure:

• To the testing mat ten drops of urine is added.

• The mat is specially designed for sustaining bilirubin on the surface and the urine is absorbed.

• Chemical reaction produces blue to purple color on mat which is the indication of bilirubin.

• Colors except blue or purple appearance are a negative result.

Therefore, purpose of special mat in Ictotest is to “remain bilirubin on mat’s surface”. Hence, the correct answer is option.