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

Exercise 13

Which of the following tests differentiates budding yeast cells from RBCs?

A. pH

B. Saline wet mount

C. KOH prep

D. Whiff test

Step 1 of 2

Yeast cells in vagina:

Presence of yeast rarely in vaginal secretion is considered as a portion of normal flora.

• Yeast cell appear as budding cells or hyphae in wet mount

• Discrimination of yeast cell from RBC is difficult on wet mount because both RBCs (Red Blood Cells) and yeast cells measure 7-8 (micrometers) in diameter

• KOH test is used to differentiate RBCs and yeast cells by staining yeast cells as gram positive

Therefore, “KOH preparation test” differentiates budding yeast cells from RBCs. Hence, the correct answer is option.