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

Question

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

Edition 6ISBN: 0803641044

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

Edition 6ISBN: 0803641044

Exercise 80

The principle of the reagent strip test for specific gravity uses the dissociation constant of a(n):

A. Diazonium salt

B. Indicator dye

C. Polyelectrolyte

D. Enzyme substrate

Step-by-step solution

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Step 1 of 2

Step 2 of 2

Answer 1

Specific gravity reaction in reagent strip:

Specific gravity of solution is detected by refractometer, osmolality and reagent strip.

Procedure:

• It is a convenient way to detect specific gravity in reagent strip.

• In an alkaline medium (urine), dissociation constant of polyelectrolyte (pKa) changes.

• Hydrogen ions are released in response to concentration of ion in solution.

• More hydrogen ions are released when concentration of urine is high, dropping pH.

• Bromthymol blue is used as an indicator to detect the specific gravity in reagent strip

• The color from blue->green->yellow is obtained when specific gravity increases.

Therefore, principle of reagent strip reaction for specific gravity uses “polyelectrolyte” dissociation constant. Hence, the correct answer is option $<div class=answer> Specific gravity reaction in reagent strip: Specific gravity of solution is detected by refractometer, osmolality and reagent strip. Procedure: • It is a convenient way to detect specific gravity in reagent strip. • In an alkaline medium (urine), dissociation constant of polyelectrolyte (pKa) changes. • Hydrogen ions are released in response to concentration of ion in solution. • More hydrogen ions are released when concentration of urine is high, dropping pH. • Bromthymol blue is used as an indicator to detect the specific gravity in reagent strip • The color from blue->green->yellow is obtained when specific gravity increases. Therefore, principle of reagent strip reaction for specific gravity uses “polyelectrolyte” dissociation constant. Hence, the correct answer is option .$ .