Hematochrit and Thin Blood Smear

What is the purpose of the 'Buffy Coat Method'?

• To identify bacteria in water samples

• To measure blood glucose levels

• To identify microfilaria and blood protozoa (Trypanosoma spp.)

• To determine blood pressure

At what speed should the centrifuge be set during the 'Buffy Coat Method'?

• 5,000-7,000 rpm

• 10,000-12,000 rpm

• 15,000-17,000 rpm

• 20,000-22,000 rpm

What is used to seal one end of the capillary tube in the 'Buffy Coat Method'?

• Glue

• Tape

• Sealant

• Wax

What magnifications are used to examine the buffy coat under a microscope?

• x50 and x100

• x100 and x200

• x200 and x400

• x400 and x800

What is the purpose of creating a thin blood smear?

• To identify blood protozoa and microfilaria

• To measure blood pressure

• To test blood sugar levels

• To determine blood type

What is the first step in preparing a thin blood smear?

• Dry the slide

• Place a drop of blood at the edge of the glass slide

• Stain the slide with Giemsa

• Examine the slide under a microscope

At what angle should the spreader be placed on the blood drop during the preparation of a thin blood smear?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

What magnification is used to examine the slide under a compound microscope?

• x400

• x600

• x800

• x1000

Which of the following species is shown in the first image of the thin blood smear?

• Trypanosoma sp.

• Theileria sp.

• Babesia sp.

• Plasmodium sp.

What is the species shown in the second image of the thin blood smear?

• Babesia sp.

• Theileria sp.

• Trypanosoma sp.

• Leishmania sp.