WorksheetsHematochrit and Thin Blood Smear
Total questions: 21
Worksheet time: 11mins
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.
Identify the species shown in the third image of the thin blood smear.
Theileria sp.
Babesia sp.
Trypanosoma sp.
Plasmodium sp.
What is the purpose of a 'Thick Blood Smear'?
To identify blood glucose levels
To detect protozoa in blood
To measure blood pressure
To determine blood type
Which stain is used in the 'Thick Blood Smear' process?
Hematoxylin
Eosin
Giemsa
Wright's stain
At what magnifications should the slide be examined in the 'Thick Blood Smear' process?
x10 and x40
x50 and x200
x100 and x400
x500 and x1000
What is the purpose of a 'Wet Blood Smear'?
To identify blood protozoa and microfilaria
To measure blood pressure
To determine blood type
To check for cholesterol levels
What should be placed on the glass slide in a 'Wet Blood Smear'?
A drop of water
A drop of blood
A drop of oil
A drop of saline
What is used to cover the blood drop in a 'Wet Blood Smear'?
A glass slide
A cover slip
A piece of paper
A plastic sheet
At what magnifications should the slide be examined using a compound microscope?
x50, x100, x150
x100, x200, x400
x200, x300, x500
x400, x500, x600
What is the main advantage of using a 'Thick Blood Smear' over a 'Thin Blood Smear'?
It requires less blood
It allows for better visualization of parasites
It is quicker to prepare
It is easier to stain
Which of the following is a common mistake when preparing a blood smear?
Using a dirty slide
All of the above
Not allowing the slide to dry
Using too much blood
What is the purpose of using a cover slip in a 'Wet Blood Smear'?
To enhance the staining process
To prevent evaporation of the sample
To flatten the blood drop for better viewing
To protect the sample from contamination
