Q: how much Iron get transfused with one unit pRBC bag (300 cc)? 


Answer:  200 mg

 Life-threatening anemia requires pRBC. Each bag of red blood transfusion (approximately 250-300 cc) infuse about 200 mg of iron in the form of hemoglobin. Unfortunately, just Iron infusion will not serve the purpose in acute situation as directly infused iron  requires time for incorporation into RBCs.