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| 1 | |
What functions do white blood cells serve in the body? |
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| 2 | |
What does the WBC count measure? What is the most common reason it is performed? |
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| 3 | |
How does the normal WBC count for newborns differ from that of adults? |
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| 4 | |
What are some causes of normal and abnormal variation in the WBC count? |
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| 5 | |
When performing a WBC count, why must you add acid to the blood before counting the white cells? |
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| 6 | |
Describe the area of the hemacytometer that is counted when a WBC count is performed. What is the total area counted? |
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| 7 | |
How does the presence of nucleated red blood cells affect the WBC count? Why? What must be done to correct for this? |
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| 8 | |
Why is the depth factor in the WBC count formula 10 when the sample in the hemacytometer is only 0.1 mm deep? |
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| 9 | |
List some of the causes of normal and abnormal variation in the RBC count. |
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| 10 | |
When performing an RBC count, why is saline or a similar solution added to the blood before the count is made? |
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| 11 | |
Describe the area of the hemacytometer that is counted when an RBC count is performed. What is the total area counted? |
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| 12 | |
In a count of red or white blood cells, what is the rule for counting cells that fall on the borderlines between squares? |
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| 13 | |
What is the most common reason for performing an RBC count? |
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