What is the normal range for absolute lymphocyte count based on a WBC count of 2.5X10^9 cells/L with % lymphocytes at 30%?

To determine the absolute lymphocyte count, you can use the formula ( \text{Absolute lymphocyte count} = \text{Total WBC count} \times \left(\frac{\text{% lymphocytes}}{100}\right) ).

In this case, the total WBC count is given as ( 2.5 \times 10^9 ) cells/L, which can be converted to cells/uL:

1. Convert ( 2.5 \times 10^9 ) cells/L to cells/uL:

[

2.5 \times 10^9 , \text{cells/L} = 2.5 \times 10^9 , \text{cells/L} \div 1000 , \text{(to convert to cells/mL)} = 2.5 \times 10^6 , \text{cells/mL} = 2500 , \text{cells/uL}

]

2. Calculate the absolute lymphocyte count:

[

\text{Absolute lymphocyte count} = 2500 , \text{cells/uL} \times 0.30 = 750 ,