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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Which of the following statements about fire resistance calculations is MOST accurate?
A) Building codes usually use fire resistance ratings based on computer models. B) Mathematical equations can predict the behavior of materials under test conditions. C) Equations have been developed to calculate the fire endurance of steel beams, but not wooden beams. D) Computer models cannot deal with the fire behavior of materials as realistically as the standard time and temperature test.
For an open joint space to be obtained, the central ray must be aligned ____ to the joint
a. perpendicular b. parallel