I came across the MCQ in my physiology book, it says:
i) may decrease the life span of RBCs.
ii) is not released on breakdown of RBCs.
iii) may stimulate the stem cells.
iv) is formed mainly in liver.
v) is lipid in nature
I think ii) and iii) are correct answers, as when breaking down RBCs we don't get erythropoietin, and erythropoeitin stimulated stem cells to produce RBCs, am I right?
Because the book says that only one choice is correct. Help me please! Is there something I don't understand?