You can donate blood which has other health benefits and they will tell you blood ferritin since they need to test that to allow you to donate. If you are iron deficient they will turn you away.
The Red Cross tests hemoglobin but not ferritin, which is insufficient.
You can donate blood which has other health benefits and they will tell you blood ferritin since they need to test that to allow you to donate. If you are iron deficient they will turn you away.
The Red Cross tests hemoglobin but not ferritin, which is insufficient.