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

Multiple Choice

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 reticulocyte production index (RPI) .

A) 1.5
B) 2.7
C) 3.4
D) 13.4