[Exam 1] Chapter 34 - Management of Patients with Hematologic Neoplasms Flashcards
What are indolent neoplasms?
Where the increased number of cells produced from a culprit clone all have the same genotype
Leukemia: What is Leukocytosis?
Refers to an increased level of leukocytes (WBCs) in circulation. Normaly is only one specific typ eof leukocyte.
Leukemia: What is a significant cause of persistent leukocytosis?
Hematologic malignancy (leukemia)
Leukemia: Common feature of leukemias?
Unregulated proliferation of leukocytes in the bone marrow. Leaves little room for normal cell production.
Leukemia: What is extramedullary hematopoiesis?
Proliferation of cells in liver or spleen, can be caused by leukemia
Leukemia: With acute forms, there can be infiltration of leukemic cells in other organs such as
meninges, lymph nodes, gums and skin.
Leukemia: Leukemias can be classified how?
Either lymphoid (referring to stem cells that produce lymphocytes)
Or myeloid (stem cells that produce nonlymphoid blood cells)
Leukemia: How quickly do symptoms appear in acute leukemia?
Onset abrupt, within weeks.
Leukemia: Leukocyte development in acute leukemia?
halted at the blast phase, and thus most luekocytes are undifferentiated cells. Can progress rapidly
Leukemia: What happens in chronic leukemia?
Symptoms evolve over a period of months to years. Majority of leukocytes produced mature.
Acute Myeloid Leukemia: What does this result from?
Defect in the hematopoietic stem cell that differentiates into all myeloid cells (monocytes, granulocytes (neutrophils, basophils, eosinophils) erythrocytes and platelets.
Acute Myeloid Leukemia: Occurs most often with what age group?
Rises with age, with peak incidence at age 67
Acute Myeloid Leukemia, Clinical Manifestation: Signs and symptoms typically result from what
insufficient production of normal blood cells
Acute Myeloid Leukemia, Clinical Manifestation: What results from neutropenia, anemia, and thrombocytopenia
Neutropenia: Fever/Infection
Anemia: Weakness/Fatigue, Dyspnea, Pallor
Thrombocyto: Petechiae, Ecchymoses, and Bleeding Tendencies
Acute Myeloid Leukemia, Clinical Manifestation: What are the three main signs of this?
Neutropenia, Anemia, and Thrombocytopenia
Acute Myeloid Leukemia, Clinical Manifestation: Proliferation of leukemic cells within organs leads to what signs?
Pain from an enlarged liver or spleen, hyperplasia of gums, and bone pain from expansion of marrow.
Acute Myeloid Leukemia, Clinical Manifestation: Common sign of this on skin?
Petechiae or ecchymoses.
Acute Myeloid Leukemia, Assessment: What does a CBC show?
A decrease in both erythrocytes and platelets
Acute Myeloid Leukemia, Assessment: What does a bone marrow analysis show
Excess , > 20% , of immature leukocytes, called blast cells. Hallmark diagnossi
Acute Myeloid Leukemia, Assessment: Those with acute promyelocytic leukemia have what kind of symptoms
potentially fatal bleeding episodes, because they have underlying coagulopathy.
Acute Myeloid Leukemia, Medical Mx: Overall objective of treatment?
To achieve complete remission, in which there is no evidence of residual leukemia in the bone marrow.
Acute Myeloid Leukemia, Medical Mx: Remission is achieved by chemotherapy, called induction therapy which involves what
high doses of cytarabine or other medications.
Acute Myeloid Leukemia, Medical Mx: Treatment of APL revolves around what
induction therapy using the differentiating agents all-trans retinoic acid, which induces promyelocytic blast cells to differentiate, deterring the blasts from proliferating at an immatuer stage.
Acute Myeloid Leukemia, Medical Mx: In AML, induction therapy has a goal of what?
Eradicate the leukemic cells. But normal types of myeloid cells erradicated too causing severe neutropenia, leading to anemia and thrombocytopenia
Acute Myeloid Leukemia, Medical Mx: When the ANC is 0, what signs can the patient be experiencing?
Will have infections, bleeding, and severe mucositis that causes pain, diarrhea, and inability to maintain adequate nutrition.
Acute Myeloid Leukemia, Medical Mx: Management of this includes what?
Adminisering blood products (packed rbcs) and promptly treating infection. Use granulocytic growth factors to shorten period of significant neutropenia by stimulating the bone marrow to produce l eukocytes more quickly
Acute Myeloid Leukemia, Medical Mx: What is done when patient has recovered from induction therapy?
Consolidation therapy is given to eliminate any resiudal leukemia cells that are not clinically detectable adn reduce chance for recurrence.
Acute Myeloid Leukemia, Medical Mx: What is another way to treat this patient?
HSCT. Use aggressive chemotherapy with goal of destroying hematopoietic function of the patients bone marrow, then being “rescued” with infusion of the donor stem cells to reinitiate blood cell production
Acute Myeloid Leukemia, Medical Mx: Those who under HSCT have a significant risk for what
infection and graft-versus-host disease(where the donors lymphocytes (graft) recognize the patient’s body as forieng and set up reactions ot attack the “foreign” host.)
Acute Myeloid Leukemia, Medical Mx: When would supportive care be recommended?
When they have significant comorbidity like poor cardiac , pulmonary, renal, or hepatic function.
Acute Myeloid Leukemia, Complications: Complications of this include ?
Bleeding and infection, whcihc an cause death. Bleeding correlates with level and duration of platelet deficiency
Acute Myeloid Leukemia, Complications: What can a low platelet count cause?
ecchymoses and petechiae.
Acute Myeloid Leukemia, Complications: Most common bleeding sources include?
GI, pulmonary, vaginal, and intracranial.
Acute Myeloid Leukemia, Complications: What level of neutrophils increase the risk of infection?
Those < 100 . The longer this goes, the risk of developing fungfal infection increases.
Acute Myeloid Leukemia, Complications: What happens as massive leukemic cell destruction from chemotherapy occurs?
Release of intracellular electrolytes and fluids into systemic circulation. We see increase in uric acid, potassium, and phosphate and is known as tumor lysis (cell destruction) syndrome
Acute Myeloid Leukemia, Complications: Increased uric acid and phosphorus levels cause what?
Make the patient vulnerable to renal stone formation and renal colic, which can progress to AKI
Acute Myeloid Leukemia, Complications: Hyperkalemia and hypocalcemia lead to what
cardiac dysrhythmias, hypotension, neuromuscular effects sucha s muscle cramps, weakness, and spasms
Acute Myeloid Leukemia, Complications: GI problems may result from what
infiltration of abnormal leukocytes into the abdominal organs and from the toxicity of chemotherapeutic agents. Anorexia, N/V, Diarrhea common.
Chronic Myeloid Leukemia: This arises from what
mutation in the myeloid stem cell. Normal myeloid cells production, but increase in production of forms of blast cells.
Chronic Myeloid Leukemia: What happens because of uncontrolled proliferation of cells?
Marrow expands into the cavities of long bones, like femur, and cells are also formed in the liver and spleen., resulting in enlargement of these organs
Chronic Myeloid Leukemia: How does this happen on chemisry level?
Chromosomal translocation, where section of DNA is shifted from chromosome 22 to chromosome 9. When fusing, they produce an abnormal protein that causes leukocytes to divide rapidly.
Chronic Myeloid Leukemia: What gene is virutally present witha ll patients wiwth this disease
BCR-ABL gene
Chronic Myeloid Leukemia - Clinical Manifestations: If asymptomatic, how can leukocytosis be detected?
By a CBC
Chronic Myeloid Leukemia - Clinical Manifestations: Leukocyte count may get how high
May exceed 100,000
Chronic Myeloid Leukemia - Clinical Manifestations: PAtients with high leukocyte counts may show what signs
SOB or slightly confused because of decreased perfusion to lungs and brain from leukostrasis (excessive volume of leukocytes inhibit blood flow through capillaries)
Chronic Myeloid Leukemia - Clinical Manifestations: With there being excess amounts of leukocytes, what organs may be affeceted
there may be an enlarged/tender spleen and liver.
Chronic Myeloid Leukemia - Clinical Manifestations: What insidious symptoms will they have?
Malaise, anorexia, and weight loss.
Chronic Myeloid Leukemia - Clinical Manifestations: What are the three stages of this?
Chronic, transofmration and accelerated or blast crisis.
Chronic Myeloid Leukemia - Clinical Manifestations: What happens during the chronic phase?
Have few symptoms and complications from disease, and infections/bleeding is rare.
Chronic Myeloid Leukemia - Medical Mx: How does the oral formula of tyrosine kinase inhibitor work?
Works by blocking signals within the leukemia cells taht express the BCR-ABL protein, thus preventing a series of chemical reactions that cause the cell to grow and divide
Chronic Myeloid Leukemia - Medical Mx: What kind tyrosine kinase inhibitor therapy do?
Induce complete remission at the cellular, and even molecular level.
Chronic Myeloid Leukemia - Medical Mx: What may limit absorption and also cause toxicity?
Antacids and grapefruit may limit drug absorption, and large doses of acetaminophen may cause hepatotoxicity.
Chronic Myeloid Leukemia - Medical Mx: This is a disease that can be potentially cured with what
HSCT in those healthy patients younger than 65.
Chronic Myeloid Leukemia - Medical Mx: The use of tyrosine kinase therapy has decreased what
the need for transplantation in cML
Chronic Myeloid Leukemia - Medical Mx: What can occur during the transofmration phase?
Marks process of evolution to the acute form of leukemia. Patient may complain of bone pain and may report fevers.
Chronic Myeloid Leukemia - Medical Mx: What may happen if the spleen enlarges?/
Patient may become more anemic and thromocytopenic, and an increased basophil level is detected
Chronic Myeloid Leukemia - Medical Mx: What may ocur in the acute form of CML (blast crisis) treatment may resemble what
induction therapy for acute leukemia, using the same meds as for AML or ALL.
Chronic Myeloid Leukemia - Nursing Mx: Advances in treatment have changes the course of this disease to what?
From life-threatening and likely fatal to being a chronic disease.
Chronic Myeloid Leukemia - Nursing Mx: Drugs used to treat CML may cause what side effects?
Fatigue, asthenia, pruritus, headache, skin rash, and oropharyngeal pain are common side effects.
Chronic Myeloid Leukemia - Nursing Mx: What is used to assess for a major molecular response?
Blood testing using specific polymerase chain reaction (PCR) to detect level of BCR-ABL
Chronic Myeloid Leukemia - Nursing Mx: What is the most important way to make sure they are treated?
Adherence to therapy is critical for optimal outcomes to be achieved.
Acute Lymphocytic Leukemia: What is this?
Results from uncontrolled proliferation of immature cells (lymphoblasts) derived form the lymphoid stem cell. The cell of origin is the precursor to B Lymphocytes in 75% of all cases..
Acute Lymphocytic Leukemia: Most common in which population
young children , with boys affected more often than girls, and the peak incidence is 4 years of age. After 15, uncommon until age 50.
Acute Lymphocytic Leukemia: How does this respond to treatment?
Is very responsive to treatment, and complete remission are at 85%.
Acute Lymphocytic Leukemia: What causes there to be a diminished survival?
Increasing age.
Acute Lymphocytic Leukemia: What cna be done if relapse occurs?
Resumption of induction therapy can be achieved for a second remission. HSCT can also be useful
Acute Lymphocytic Leukemia, Clinical Manifestations: What do immature lymphocytes do?
Proliferate in the marrow and impede the development of normal myeloid cells. Normal hematopoiesis inhibited, resulting in reduced number of granulocytes, erythrocyes and platelets
Acute Lymphocytic Leukemia, Clinical Manifestations: Leukocyte counts may be low or high, but there is always what proportion
high proportion of immature cells.
Acute Lymphocytic Leukemia, Clinical Manifestations: What is most common with this type of leukemia?
leukemic cell infiltration into other organs and include pain from an enlarged liver or spleen and bone pain
Acute Lymphocytic Leukemia, Clinical Manifestations: What is frequently a sie for leukemic cells?
/CNS, so patients may exhibit cranial nerve palsies or headache and vomiing .
Acute Lymphocytic Leukemia, Medical Mx: Goal of treatment?
To obtain remission without excess toxicity and with a rapid hematologic recovery so tha additional therapy can be given if needed.
Acute Lymphocytic Leukemia, Medical Mx: Treamtnet plans are based on what?
genetic markers of the disease as well as risk factors of the patient, primarily age.
Acute Lymphocytic Leukemia, Medical Mx: What medication is a critical part of the initial induction therapy?
Corticosteorids and vinca alkaloids, because lymphoid blast cells are sensitive to this
Acute Lymphocytic Leukemia, Medical Mx: Once a patient is in remission, what special testing can be done?
Immunophenotyping, immunoglobulin gene rearrangement, is done to look for residual leukemia cells. Minimum residual testing is a useful prognostic indicator.
Acute Lymphocytic Leukemia, Medical Mx: Goal of consolidation?
To improve outcomes in those patients at high risk for relapse. HSCT may also be considered.
Acute Lymphocytic Leukemia, Medical Mx: Therapeutic goal at the time of releapse is what?
Reinitiate treatment to obtain a remission and then move quickly to HSCT. Can improve long-term disease-free survival
Acute Lymphocytic Leukemia, Medical Mx: The use of corticosteroids to treat ALL increases patients riskf for what
susceptibility to infection, with viral infections being common.
Acute Lymphocytic Leukemia, Medical Mx: Avascular necrosis can occur with who
patients treated with corticosteroid-based chemotherapy.
Chronic Lymphocytic Leukemia: Who doese this affect most
Older adults, and most common in western world. Family predisposition exists with this.
Chronic Lymphocytic Leukemia - Patho: Where does this come from
Malignant clones of B-Lymphocytes. Here, leukemia cells are fully mature. They can escape apoptosis and accumlate in the marrow.
Chronic Lymphocytic Leukemia - Patho: In early stage, what can lymphocyte count be at?
Can exceed 100,000
Chronic Lymphocytic Leukemia - Patho: Where do these accumulate?
Within the lymph nodes and spleen. Takes less than 12 months for total number to double.
Chronic Lymphocytic Leukemia - Patho: What must be done to identify the presence of these maligannt clones?
Imunophenotping the circulating B cells.
Chronic Lymphocytic Leukemia - Patho: What autoimmune complications can occur?
Autoimmune hemolytic anemia or idiopathic thrombocytopenic purpura.