The normal range of the number of white blood cells in a microliter of blood is between _________ ?
A2,500 and 09,300
BNone of these
C4,900 and 12,000
D4,500 and 10,000
Correct answer
D. 4,500 and 10,000
Explanation
The normal range is 4,500 to 10,000 cells per microliter (cells/mcL). (A microliter is a very tiny amount – one millionth of a liter).