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 35

In the reagent strip specific gravity reaction the polyelectrolyte:

A. Combines with hydrogen ions in response to ion concentration

B. Releases hydrogen ions in response to ion concentration

C. Releases hydrogen ions in response to pH

D. Combines with sodium ions in response to pH

Step-by-step solution

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Answer 1

Specific gravity reaction in reagent strip:

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

• 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 reached as the specific gravity is increased.

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