Adult-Gerontology Acute Care Nurse Practitioner (AGACNP) DRT Practice Test

To raise platelet counts quickly in immune thrombocytopenia, intravenous immunoglobulin is used because it dumps the immune system’s attack on platelets and gives a rapid, though often temporary, rise in circulating platelets. IVIG works by saturating Fc receptors on splenic macrophages, reducing the clearance of antibody-coated platelets and letting the platelets circulate longer. You typically see a rapid increase within 24–48 hours, which is why this approach is favored when a fast response is needed, such as before urgent procedures or in active bleeding.

High-dose corticosteroids also help by dampening the immune response, but their effect on platelet counts generally takes longer to become evident—days rather than hours—so they’re more about durable control than immediate correction. Platelet transfusion in ITP is usually not effective because the transfused platelets are rapidly targeted and destroyed by circulating autoantibodies. Splenectomy can offer a longer-term remission but isn’t a rapid fix and is reserved for chronic, refractory cases after medical therapies have failed.