You are counting white blood cells in a freshly drawn blood sample. You dilute the blood 1/20 in 5% acetic acid to lyse the red blood cells and then do a 1/2 dilution in trypan blue before loading the cells into a hemocytometer. You count 87 cells in the four large corner squares in the hemocytometer. What is the number of white blood cells / ml in the blood sample? O 2.17 x 10 O 870 O 8.7 x 10 O 8.7 x 10

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Health Epidemiology

Health is an essential factor for all human beings. For all humans, health is a critical factor. An individual's ability to meet life's challenges and retain his or her capacity for optimal functioning is reflected in his or her condition of health. This needs the physical, mental, and biological parts of one's constitution to maintain a degree of functioning that has a favorable influence and support for one another.