A patient sample had a retic count of 5%. The patient's hematocrit was 25%. Normal hematocrit is 45%. What is the corrected reticulocyte count?
A) 3.50%
B) 2.78%
C) 5%
D) 10%

Question

Quizplus · Accepted Answer

To calculate the corrected reticulocyte count, we need to adjust for the patient's hematocrit. The formula for corrected reticulocyte count is:
% corrected reticulocytes = observed reticulocyte count x (patient's hematocrit / normal hematocrit)

Plugging in the numbers:
% corrected reticulocytes = 5% x (25% / 45%)
% corrected reticulocytes = 2.78% (rounded to two decimal places)

Therefore, the correct answer is choice B.

A Patient Sample Had a Retic Count of 5