On a standard reticulocyte preparation with new methylene blue,100 of 1000 cells that are counted contain blue-stained granulofilamentous material.The red blood count is 3.22 × 10¹²/L,and the hematocrit is 30%.Calculate the corrected reticulocyte count.
A)1.5%
B)3.0%
C)6.7%
D)15.0%

Question

Quizplus · Accepted Answer

The corrected reticulocyte count "normalizes" the hematocrit to 45%.Thus it is the reticulocyte % × patient's hematocrit/"normal" hematocrit = 10% × (30/45)= 6.7.

On a Standard Reticulocyte Preparation with New Methylene Blue,100 of 1000