<prompt> t12 of haptoglobin complex is:5 days3 days10 days10 minutes  <response>: - Half life of free Haptoglobin - 5 days. - Half life of Haptoglobin hemoglobin complex is 10-15 minutes. - In hemolytic anemias, excess Hb released from RBC destruction is bound to Haptoglobin its complex is cleared rapidly, resulting in decreased serumfree Haptoglobin levels 