Podcast
Questions and Answers
What tool is used to take a drop of blood from the sample for the blood smear examination?
What tool is used to take a drop of blood from the sample for the blood smear examination?
- Pipette (correct)
- Catheter
- Syringe
- Tweezers
What is the purpose of tilting the blood tube at a 45-degree inclination when calculating the percentage of cellular blood components?
What is the purpose of tilting the blood tube at a 45-degree inclination when calculating the percentage of cellular blood components?
- To mix the blood with the clay
- To facilitate filling the hematocrit tube with blood (correct)
- To prevent blood spillage
- To allow air bubbles to escape
What is used to block the upper end of the hematocrit tube after it has been filled with blood?
What is used to block the upper end of the hematocrit tube after it has been filled with blood?
- Rubber stopper
- Tape
- Index finger (correct)
- Cotton swab
What is the purpose of dipping the lower end of the hematocrit tube in clay and lifting the finger from the upper end?
What is the purpose of dipping the lower end of the hematocrit tube in clay and lifting the finger from the upper end?
What is used to measure the length of the blood column in the hematocrit tube?
What is used to measure the length of the blood column in the hematocrit tube?
What is the main function of veins in the body?
What is the main function of veins in the body?
How is the length of a needle measured?
How is the length of a needle measured?
What does a higher value of Gauge (G) indicate for a needle?
What does a higher value of Gauge (G) indicate for a needle?
What determines the choice of syringe and needle for blood collection?
What determines the choice of syringe and needle for blood collection?
What is the main function of arteries in the body?
What is the main function of arteries in the body?
Study Notes
Blood Smear Examination
- A micro-hematocrit pipette is used to take a drop of blood from the sample for blood smear examination.
Hematocrit Tube Preparation
- Tilting the blood tube at a 45-degree inclination is necessary to ensure proper mixing of blood components for accurate percentage calculation.
Sealing the Hematocrit Tube
- A clay seal is used to block the upper end of the hematocrit tube after it has been filled with blood.
Preparing the Hematocrit Tube for Centrifugation
- Dipping the lower end of the hematocrit tube in clay and lifting the finger from the upper end prepares the tube for centrifugation.
Measuring Blood Column Length
- A millimeter scale is used to measure the length of the blood column in the hematocrit tube.
Circulatory System Functions
- Veins function to return blood to the heart.
- Arteries function to distribute oxygenated blood from the heart to the rest of the body.
Needle Measurements
- The length of a needle is measured in inches or millimeters.
- A higher value of Gauge (G) indicates a smaller needle diameter.
Syringe and Needle Selection
- The choice of syringe and needle for blood collection is determined by the vein size and the amount of blood required.
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Description
Test your knowledge of hematology with this quiz on blood smear examination and calculating the percentage of cellular blood components. Learn about the tools and steps involved in examining the shape of red blood cells and determining hematocrit percentage.
