Summer Research Program for Science Teachers
Medical Technology Lesson - Red Blood Cell Count
Jose Merced - 1996
John Dewey High School, Brooklyn
The student should be able to:
* Perform a manual red cell count.
* Calculate the results of a red cell count [Content Standard Unifying Concepts- Change, constancy, and measurement]
* List two precautions to be observed when performing a RBC count. [Teaching Standard D- Ensure a safe working environment]
Why is an accurate RBC count important? [Content Standard E- Understandings about science/technology]
I Red blood cells
(ASK): Why do we need RBCs?
1. Normal values- men 4.5-6.0/mm3 women 4.0-5.7/mm3
(ASK): Which are the conditions associated with the changes of the normal values?
2. Altitudes play an important role. Why?
1. Clean equipment
2. Proper counting technique
3. Variations in count
III Have students perform an RBC count
Review: Have the students answer questions in the text
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