A week ago, Cally had a blood test and her results showed a normal RBC count.  However, she recently had a stomach flu.  For three consecutive days, she was having severe diarrhea and was sweating profusely.  Her recent red blood cell count was above the average normal value. What type of polycythemia might this be?

Select one:

a. It\'s not polycythemia

b. relative polycythemia

c. secondary polycythemia

d. polycythemia vera