Dr. Riggs took 1ml of whole mouse blood and added it to 10ml of PBS. You next take 0.5 mL of Dr. Riggs's sample from step 1 and add it to 9.5 mL of PBS. You load your hemacytometer with the dilution you made in step 2, look at it under the microscope, but there are still too many cells to count. You now take 0.2mL of sample from step 2 and add it to 5ml of PBS. Using a hemacytometer, you load your sample and count the following number of red blood cells in 1 chamber (5 squares): chamber 1 = 25, 25, 30, 20, 30 If this mouse has 2 mL of blood in it’s body, how many red blood cells does it have? The options are 1.49X10^6 2.97X10^6 not enough information to tell 1.49X10^9 2.97X10^9
Dr. Riggs took 1ml of whole mouse blood and added it to 10ml of PBS. You next take 0.5 mL of Dr. Riggs's sample from step 1 and add it to 9.5 mL of PBS. You load your hemacytometer with the dilution you made in step 2, look at it under the microscope, but there are still too many cells to count. You now take 0.2mL of sample from step 2 and add it to 5ml of PBS. Using a hemacytometer, you load your sample and count the following number of red blood cells in 1 chamber (5 squares): chamber 1 = 25, 25, 30, 20, 30 If this mouse has 2 mL of blood in it’s body, how many red blood cells does it have? The options are 1.49X10^6 2.97X10^6 not enough information to tell 1.49X10^9 2.97X10^9
Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter2: Basic Hematology
Section2.4: The Hemacytometer
Problem 2CP
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Question
- Dr. Riggs took 1ml of whole mouse blood and added it to 10ml of PBS.
- You next take 0.5 mL of Dr. Riggs's sample from step 1 and add it to 9.5 mL of PBS.
- You load your hemacytometer with the dilution you made in step 2, look at it under the microscope, but there are still too many cells to count.
- You now take 0.2mL of sample from step 2 and add it to 5ml of PBS.
- Using a hemacytometer, you load your sample and count the following number of red blood cells in 1 chamber (5 squares):
chamber 1 = 25, 25, 30, 20, 30
If this mouse has 2 mL of blood in it’s body, how many red blood cells does it have?
The options are
1.49X10^6
2.97X10^6
not enough information to tell
1.49X10^9
2.97X10^9
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