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Case Study 98 Leukemia with Bone Marrow Transplant Difficulty: Advanced Setting: Hospital Index Words: leukemia, bone marrow transplant, laboratory data interpretation, HLA (human lymphocyte antigen) typing, myeloablative therapy, immunosuppression
C.O. is a 43-year-old woman who noted a nonpruritic nodular rash on her neck and chest approximately 6 weeks ago. Other symptoms she noted were polyarticular joint pain and back pain. The rash became generalized, spreading to her head, abdomen, and arms. She experienced 3 episodes of epistaxis in 1 day about 2 weeks ago. Over the past week, her gums have become swollen and tender. Because of the progression of symptoms and increasing fatigue, she sought medical attention. Lab work was performed, and C.O. was referred to a hematologist.
The CBC revealed WBC 39 thou/cmm, Hgb 10.4 g/dl, Hct28.7%, platelets 49 thou/cmm. The WBC differential was monocytes 64%, lymphocytes 15%, neutrophils 4%, blasts 17%. Chemistry studies came back Na 139 mmol/L, K 3.2 mmol/L, Cl 100 mmol/L, CO2 32 mmol/L, BUN 14 mg/dl, creatinine 1.0 mg/dl, glucose 140 mg/dl, lactate dehydrogenase (LDH) 1850 units/L, uric acid 6.1 mg/dl. The chest x-ray (CXR) showed normal lung expansion, heart size normal, and no lymphadenopathy. Skin biopsy showed cutaneous leukemic infiltrates, and a bone marrow biopsy showed moderately hypercellular marrow and collections of monoblasts. The finaldiagnosis was acute myeloblastic leukemia.
C.O. is admitted to the hematology/oncology unit of a teaching hospital. She is to receive cytarabine (Ara-C, Cytosar) 100 mg/m2/day as a continuous infusion for 7 days and idarubicin 12 mg/m2/day IV push (IVP) for 3 days. She is scheduled in angiography for placement of a triple-lumen subclavian Hickman catheter before beginning her therapy. A lumbar puncture for routine studies and cytology will also be performed.
1. Interpret the CBC. What does the presence of blasts in the differential mean?
2. What is the purpose of a bone marrow biopsy?
3. Considering all the admission data listed above, what potential problem will the nurse be alerted of after the patient returns to the unit following the insertion of the catheter?
4. What assessments are essential for the nurse to make regarding the central catheter throughout the hospitalization?
5. What are the side effects related to the following chemotherapeutic agents: cytarabine and idarubicin? Identify five nursing interventions related to the side effects of each chemotherapeutic agent.
CASE STUDY PROGRESS On the fifth day of continuous infusion of cytarabine, C.O. develops a fever of 38.6° C. Her vital signs (VS) are 110/54, 115, 26. The nurse notifies the intern on duty, who evaluates the patient and writes the following orders: blood cultures ¥2 sites; Tylenol suppository 650 mg PR q4-6h prn; Primaxin 500 mg IVPB q8h; notify MD of T > 38.5° C
6. Do these orders seem appropriate for this patient? Explain.
7. Daily labs are drawn. On the last day of the continuous chemotherapy, C.O.’s CBC showed WBC 1.2 thou/cmm, Hgb 6.8 g/dl, Hct 21.3%, platelets 17 thou/cmm, differential bands 0%, neutrophils 5%, monocytes 25%, lymphocytes 65%, blasts 5%. What does this count indicate about her immune system?
8. Considering the above-mentioned data, what blood products will most likely be ordered for C.O.?
9. On day 14 after completion of her therapy, a bone marrow biopsy shows the patient is in complete remission. With continued blood product support and antibiotic coverage, her marrow recovers, and she is discharged from the hospital. HLA (human lymphocyte antigen) typing has been performed on all siblings. Her oldest brother is a perfect HLA match and has agreed to donate bone marrow or stem cells. C.O. is to be readmitted to the bone marrow transplant unit within the next few weeks. What does “complete remission” mean for C.O.?
10. What type of bone marrow transplant will she have? Brieflydescribe the transplant process.
11. On day 17 after the transplant, she develops severe nausea and vomiting (N/V) in addition to diarrhea of more than 1200 cc/24 hr. She is made NPO. Graft-versus-host disease of the gut is suspected. Describe graft-versus-host disease. How would the nurse explain this to the patient and her family? Is there a potentially positive result of this complication? Explain your answer.
12. Identify four problems, then develop interventions and expected outcomes, for a patient undergoing a bone marrow transplant.
In the complex world of hematologic disorders and bone marrow transplants, Case Study 98 presents an intricate scenario involving C.O., a 43-year-old woman diagnosed with acute myeloblastic leukemia. This essay delves into the comprehensive analysis of this case, addressing questions related to laboratory data interpretation, treatment strategies, complications, and nursing interventions.
The Complete Blood Count (CBC) reveals critical information about C.O.’s condition. The presence of blasts in the differential indicates the presence of immature cells in the bloodstream, suggesting a disturbance in hematopoiesis. In the context of leukemia, a high number of blasts indicates an aggressive form of the disease.
A bone marrow biopsy helps diagnose the extent of leukemia and assesses the percentage of blast cells present. It aids in staging the disease, guiding treatment decisions, and monitoring response to therapy.
Following the catheter insertion, a potential problem the nurse must be vigilant for is infection or catheter-related complications, such as pneumothorax, bleeding, or thrombosis.
Throughout hospitalization, the nurse should monitor the catheter insertion site for signs of infection, ensure proper catheter functioning, assess for any signs of catheter-related complications, and ensure compliance with aseptic techniques during any interventions.
a. Cytarabine: Side effects include myelosuppression, nausea, vomiting, and neurotoxicity. Nursing interventions involve monitoring blood counts, administering antiemetics, and assessing neurological symptoms.
b. Idarubicin: Side effects comprise myelosuppression, cardiotoxicity, and extravasation risk. Nursing interventions encompass monitoring cardiac function, assessing for bleeding or infection, and educating patients on extravasation prevention.
The orders for blood cultures, Tylenol, Primaxin, and notifying the physician of elevated temperature are appropriate for managing C.O.’s fever and potential infection.
C.O.’s CBC counts suggest severe myelosuppression, leading to a compromised immune system due to decreased white blood cells, hemoglobin, and platelets.
Blood products that may be ordered include packed red blood cells (PRBCs) for anemia and platelets for thrombocytopenia.
Complete remission signifies the absence of detectable leukemia cells in the bone marrow and peripheral blood. However, it does not imply a cure, as minimal residual disease may still exist.
C.O. will undergo an allogeneic bone marrow transplant, receiving marrow from her HLA-matched brother. The process involves pre-transplant conditioning, infusion of the donor’s marrow or stem cells, engraftment, and post-transplant recovery.
GVHD occurs when donor immune cells attack the recipient’s tissues. It manifests as nausea, vomiting, diarrhea, and other systemic symptoms. Explaining this to the patient involves discussing the potential benefits of graft-versus-leukemia effect and post-transplant immunity.
Problem 1: Risk of Infection
Intervention: Administer prophylactic antibiotics, monitor for signs of infection
Outcome: Prevention of infectious complications
Problem 2: Graft Failure
Intervention: Monitor engraftment progress, provide supportive care
Outcome: Successful engraftment and hematopoietic recovery
Problem 3: Mucositis and Nausea
Intervention: Administer antiemetics, provide oral care
Outcome: Alleviation of mucositis-related symptoms
Problem 4: GVHD
Intervention: Administer immunosuppressants, provide supportive care
Outcome: Management of GVHD symptoms and complications
Case Study 98 portrays the intricate challenges of leukemia treatment and bone marrow transplantation. From interpreting lab results to managing treatment-related complications, the nursing role is pivotal in ensuring patient well-being. This comprehensive analysis underscores the complexity of providing care in this context and highlights the critical role nurses play in optimizing patient outcomes.
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