MICROSCOPY

Question 1

Which microscopy technique presents objects as dark against a light background and is the most commonly used in clinical laboratory settings?

A) Dark field microscopy
B) Phase contrast microscopy
C) Fluorescence microscopy
D) Bright field microscopy

Answer 1

D) Bright field microscopy

Question 2

Which microscopy technique is particularly useful for the identification of Treponema pallidum?

A) Phase-contrast microscopy
B) Bright-field microscopy
C) Dark-field microscopy
D) Fluorescence microscopy

Answer 2

C) Dark-field microscopy

Question 3

What is a characteristic feature of Dark Field Microscopy?

A) Bright background
B) Dark background
C) Multicolored background
D) Transparent background

Answer 3

B) Dark background

Question 4

In microscopy, which technique enhances the visualization of elements with low refractive indices, such as hyaline casts, mixed cellular casts, mucous threads, and Trichomonas?

A) Bright Field Microscopy
B) Dark Field Microscopy
C) Fluorescence Microscopy
D) Phase Contrast Microscopy

Answer 4

D) Phase Contrast Microscopy

Question 5

Which microscopy technique is particularly useful in identifying cholesterol in oval fat bodies, fatty casts, and crystals?

A) Dark field microscopy
B) Phase contrast microscopy
C) Polarizing microscopy
D) Fluorescence microscopy

Answer 5

C) Polarizing microscopy

Question 6

Which microscopy technique allows the visualization of naturally fluorescent microorganisms or those stained by a fluorescent dye, including labeled antigens and antibodies?

A) Bright field microscopy
B) Phase contrast microscopy
C) Fluorescence microscopy
D) Dark field microscopy

Answer 6

C) Fluorescence microscopy

Question 7

Which microscopy technique provides a three-dimensional image and layer-by-layer imaging of a specimen?

A) Dark field microscopy
B) Phase contrast microscopy
C) Fluorescence microscopy
D) Interference contrast microscopy

Answer 7

D) Interference contrast microscopy