Ten nucleated red blood cells (NRBCs) are found in a blood film when differentiating 100 white cells. What is the corrected white blood count if the automated cell counter printed a count of 10.0* 10⁹/L?

Question

Quizplus · Accepted Answer

The corrected white blood count can be calculated using the following formula:

Corrected WBC count = (Observed WBC count) / (1 + (NRBC count/100))

Plugging in the values given in the question, we get:

Corrected WBC count = (10.0 x 10^9/L) / (1 + (10/100))
Corrected WBC count = (10.0 x 10^9/L) / 1.1
Corrected WBC count = 9.1 x 10^9/L (or 9.1 x 10^3/µL)

Therefore, the corrected white blood count is 9.1 x 10^9/L (or 9.1 x 10^3/µL), which corresponds to choice B.

Ten Nucleated Red Blood Cells (NRBCs) Are Found in a Blood