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Smearing Blood

1. Why is it important to smear the blood as soon as the drop is placed on the slide?

2. Name 3 factors that determine the thickness of the smear.

3. If the patient's hematocrit is increased, how would you adjust your slide preparation methods?

4. If the patient's hematocrit is decreased, how would you adjust your slide preparation methods?

5. List 5 common causes of a poorly prepared blood smear.

6. How would you correct your blood smear preparation if your patient has cold agglutinins.

7. List the 3 components of the Wright smear and indicate their purposes.

8. In a poorly prepared smear where do larger white blood cells accumulate? Where do lymphocytes accumulate?

9. List 3 characteristics of a well-prepared smear.

10. Name the 3 types of blood smear that can be performed in the c.

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Answers
1. The delay in smear preparation results in spare, abnormal distribution of WBC.Large sized WBC will get accumulated at the thinner edge of the smear.
2. The three factors which determine thickness of the smear are
a. Speed
b. Angle
c. Drop size

a. Speed: If the spreader slide is moved fast, then the film will be thinner and longer. If the movement of slide is low, the smear will be thicker and shorter.
b. Angle: If the angle is smaller than 300, then the smear will be thinner. If the angle is greater than 300, then the smear is thicker.
c. Drop size: A large drop results in extended ...

Solution Summary

The solution discusses why it is important to smear blood on the slide as soon as it is dropped.

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