Page 1309 - Saunders Comprehensive Review For NCLEX-RN
P. 1309

3. Several possible causes exist, including chronic
                                                exposure to myelotoxic agents, viruses and infections
                                                such as hepatitis, Epstein-Barr virus, autoimmune
                                                disorders such as human immunodeficiency virus,
                                                and allergic states.
                                             4. The definitive diagnosis is determined by bone
                                                marrow aspiration (shows conversion of red bone
                                                marrow to fatty bone marrow).
                                             5. Therapeutic management focuses on restoring
                                                function to the bone marrow and involves
                                                immunosuppressive therapy and bone marrow
                                                transplantation (treatment of choice if a suitable
                                                donor exists).
                                             6. If the cause is a myelotoxic medication that is being
                                                administered for another purpose, the medication
                                                may be discontinued to improve bone marrow
                                                function.
                                B. Assessment
                                             1. Pancytopenia (deficiency of erythrocytes, leukocytes,
                                                and thrombocytes)
                                             2. Petechiae, purpura, bleeding, pallor, weakness,
                                                tachycardia, and fatigue
                                C. Interventions
                                             1. Prepare the client for bone marrow transplantation if
                                                planned.
                                             2. Administer immunosuppressive medications as
                                                prescribed; antilymphocyte globulin or antithymocyte
                                                globulin may be prescribed to suppress the
                                                autoimmune response.
                                             3. Colony-stimulating factors may be prescribed to
                                                enhance bone marrow production.
                                             4. Corticosteroids and cyclosporine may be prescribed.
                                             5. Administer blood transfusions if prescribed and
                                                monitor for transfusion reactions.



               Box 44-1

               Common Sites of Metastasis

               Bladder Cancer



                  ▪ Lung
                  ▪ Bone
                  ▪ Liver
                  ▪ Pelvic, retroperitoneal structures





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