Erythropoietin production is inhibited by ?
Estrogen
Progesterone
Thyroxine
Testosterone
Ans. is 'a' i.e., EstrogenThe most impoant stimulus for erythropoietin secretion is hypoxia.Other stimulus that can increase its secretion are cobalt salts, androgens, alkalosis due to high altitude, and catecholamines beta-adrenergic mechanism.