What diagnostic test involves staining cervical squamous epithelium with iodine-based Lugol's solution?
a. Pap smear
b. Endocervical test
c. Schiller's test
d. LEEP
ANS: C
The Schiller test is done to identify abnormal tissue that can indicate the need for further testing. Glycogen in normal epithelium takes up the iodine and stains. Abnormal tissues, with little or no glycogen, do not stain brown.
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