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112 Cards in this Set
- Front
- Back
How many WBCs should there be in a liter of blood?
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WBCs: in health, there should be 4.4-11.3 x 109/L of WBCs in blood.
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What percent of plasma cells are found in blood?
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• Its important to know that in health, there should never be plasma cells in the blood.
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Which leukocyte includes the following properties?
Bactericidal “left shift”: increase in immature precursors |
Neutrophils (PMNs)
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Which leukocyte includes the following properties?
allergic, anti-parasitic, drug, neoplasms |
Eosinophils
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Which leukocyte includes the following properties?
immediate hypersensitivity reactions; ie, asthma |
Basophils
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Which leukocyte includes the following properties?
“the mononuclear phagocyte system;” blood monocytes + those carried to peripheral tissues-> histeocyte or macrophage: bacteria, fungi, mycobacteria, protozoa, virus, take up senescent cells, antigen presentation |
Monocytes
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What is the percentage of T lymphocytes compared to the rest of the lymphocytes?
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80-90% of Lymphocytes
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What is leukopenia usually attributed to?
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A decrease in neutrophils (i.e. neutropenia or granulocytopenia)
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What are the causes of Lymphopenia?
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HIV
Glucocorticoids Drugs Autoimmune Acute viral Malnutrition |
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What can be due to Decreased Production & Increased Destruction?
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Neutropenia and Agranulocytosis
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What are some Drugs that are attributed to increased destruction in Neutropenia and Agranulocytosis?
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◊ Alkylating agents, antimetabolites
Choramphenical, sufonamides, chlorpromazine, thiouracil |
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What are the clinical manifestations of Neutropenia & Agranulocytosis?
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Infections (deep w/gray, green-black necrotic membranes)
Ulcerating Lesions of the: *Gingiva *Floor of Mouth *Buccal Mucosa *Pharynx *Oral Cavity (agranulocytic angina) *Elsewhere in body |
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What are the 5 pools?
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1. Precursors
2. Storage 3. Circulating 4. Marginating (cells stuck to the walls of the vessels) 5. Tissues |
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What condition occurs due to too many leukocytes?
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Reactive Leukocytosis
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What is the difference in site and spread between Hodgkin's Lymphoma & NHL?
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Hodgkin - Single node; contiguous; Rarely involves waldeyer ring & mesentery
NHL - Multiple nodes; Extranodal; Unpredictable spread; Waldeyer ring & mesentery |
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What are the broad classifications for Neoplastic Lymphoid Disorders?
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1. Lymphoid Neoplasms (has Hodgkin's Lymphoma)
2. Myeloid Neoplasms 3. Histiocytoses |
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What is the characteristic cell found in Hodgkin's Lymphoma?
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Reed-Sternberg
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What are these classified as?
*Acute myelogenous leukemias *Myelodysplastic syndromes *Chronic myeloproliferative disorders |
Myeloid Neoplasms
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What cell has the following properties?
in a non-neoplastic inflammatory background (EOS) Classically has two big nuclei that look like owl eyes. |
Reed-Sternberg
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What kind of cells does non-classical hodgkin lymphoma have?
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Popcorn or L&H cells (lymphocytic & histeocyte Reed-Sternberg variants)
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What are the types of classical Hodgkin's Lymphoma?
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1. Nodular Sclerosis
2. Mixed Cellularity 3. Lymphocyte Rich 4. Lymphocyte-depleted (least favorable diagnosis) |
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What is the most common type of lymphoma?
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Chronic Lymphocytic Leukemia (CLL)/Small Lymphocytic Lymphoma (SLL)
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What type of lymphoma Always involves bone marrow & commonly the spleen. It also has Cytopenias: bleeding & infection?
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CLL/SLL
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What is the most common NHL?
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Follicular Lymphoma
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What type of lymphoma has t(14:18)?
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Follicular Lymphoma
t(14:18) 14 is the heavy change locus of immunoglobulins |
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What type of lymphoma is: *Indulent & Incurable
*BCL-2 expression (normal germinal centers are BCL-2 neg) *t(14:18) *A lymph node w/many follicles; normal architecture effaced |
Follicular Lymphoma
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What type of lymphoma has t(11:14)?
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Mantle Cell Lymphoma
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What type of lymphoma has the properties:
*t(11:14) *Cyclins D-1 protein |
Mantle Cell Lymphoma
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What type of lymphoma ARISES AS A SINGLE RAPIDLY GROWING, SYMPTOMATIC MASS?
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Diffuse Large B-cell Lymphoma
Aggressive- requires intense chemotherapy Large neoplastic cell size, diffuse growth pattern |
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What are the different types of plasma cell neoplasms?
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MGUS (monoclonal gammopathy of uncertain significance)
Waldenstrom Macroglobulinemia |
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What is the prognosis of multiple myeloma?
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Poor Prognosis
Die within 3-5 years |
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What is the plasma cell content in bone marrow for Multiple Myeloma?
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>30% plasma cells in marrow
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What type of lymphoma displays symptoms of Infection, Renal Insufficiency, Hypercalcemia (due to the break-down of bone)
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Multiple Myeloma
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What is significant regarding ALLs & AMLs?
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They can have identical signs and symptoms
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Who is affected most in ALL (Acute Lymphoblastic Leukemia)?
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Younger people are affected
(80% B-cell precursors, 20% T-cell precursors) |
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Who is affected most in AML (Acute Myelogenous Leukemia)?
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Adults
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What does the cellular composition of AML look like?
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Have looser nuclei
Prominent nucleoli More cytoplasm often with Granules |
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What type of lesions are common with AML (Acute Myelogenous Leukemia)
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Mouth/Throat Ulcers
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**What type of leukemia has the following properties?
*t(15:17) PML/RARα *usually present w/DIC *Response to RETINOIC ACID as a treatment |
Acute Promyelocytic Leukemia
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What has Birbeck granules in the cytoplasm (electron microscopy)?
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Langerhans Cell Histiocytosis
(neoplastic cell is a dendritic cell) |
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What are the different types of Myeloproliferative Disorders?
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Myeloproliferative Disorders
Chronic Myelogenous Leukemia (CML) Polycythemia Vera Essential Thrombocytosis Primary Myelofibrosis |
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What are common symptoms of Myeloproliferative Disorders?
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Splenomegaly
Spent phase cytopenias and marrow fibrosis Can progress over time to acute leukemia (CML invariably does) |
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What type of Myeloproliferative disorder has a Philadelphia (Ph1) chromosome: t(9:22)?
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Chronic Myelogenous Leukemia (CML)
Translocation is present in 95% of cases BCT-ABL fusion (tyrosine kinase activity; unregulated myeloproliferation!) Gleevec (imtinib) inhibits tyrosine kinase |
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What stage of Acute Leukemia (AML) is M0?
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minimally differentiated
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What stage of Acute Leukemia (AML) is M1?
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Without maturation
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What stage of Acute Leukemia (AML) is M2?
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With maturation (AUER RODS)
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What stage of Acute Leukemia (AML) is M4?
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Myelomonocytic
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What stage of Acute Leukemia (AML) is M5?
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M5a = Monoblasts
M5b = Monocytic |
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What stage of Acute Leukemia (AML) is M6?
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Erythroleukemia
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What stage of Acute Leukemia (AML) is M7?
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Magakaryoblastic
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What condition has the following features?
• Men,50-60 yrs. • Multiple skeletal sites “punched out” lesions § Plasma cells invade and erode bone. • Erode bone • pathologic fractures • Marrow: for diagnosis, you will have to have >30% plasma cells § You should normally have no more than 2% • M-component: 55% IgG; § serum IgG>3.5g/dL,IgA>2g/dL • *Rare to see plasma cells in peripheral blood • *Infection, renal insufficiency, hypercalcemia (due to the breakdown of bone) • Poor prognosis: Die within 3-5 years |
Multiple Myeloma
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What disorder has a Monoclonal spike of IgG?
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Multiple Myeloma
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Leukemia Clue: Children
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ALL
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Leukemia Clue: Myeloblasts
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AML
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Leukemia Clue: Auer Rods
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AML, promyelocytic
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Leukemia Clue: DIC
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Promyelocytic
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Leukemia Clue: Elderly
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CLL
(chronic lymphocytic leukemia) |
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Leukemia Clue: Splenomegaly
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CML
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Leukemia Clue: Philadelphia Chromosome
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CML
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Leukemia Clue: Tartrate-resistant acid phosphatase
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Hairy Cell
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Leukemia Clue: HTLV-1
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Adult T cell
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What is the major difference between Multiple Myeloma & Waldenstrom Macroglobulinemia?
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Lack of lytic bone lesions in Waldenstrom
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What is the major difference between Acute Leukemias and Chronic Leukemias?
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Acute Leukemias have blasts in peripheral blood and decreased mature cells
Chronic Leukemias have an increased number of mature WBCs in the peripheral blood |
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What is significant about Leukocyte alkaline phosphatase?
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It is elevated in inflammatory leukocytosis
It is depressed in chronic myelogenous leukemia |
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Where is factor VIII synthesized?
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Factor VIII is synthesized in the endothelium of vessels
(the other clotting factors are synthesized in the liver) |
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What condition has a JAK-2 mutation (pH absent) & Low erythropoietin levels (vs. relative polycythemias)
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Polycythemia Vera
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What type of lymphoma is associated w/EBV and displays a starry sky pattern?
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Burkitt Undifferentiated Lymphoma
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What are normal levels of hemoglobin (gm/dL)?
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Male 13.6-17.2
Female 12-15 |
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What are normal levels of HCT (hematocrit)?
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Male 39-49
Female 33-43 |
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What is the normal MCV (mean cell volume)?
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82-96
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What is the definition of anemia?
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Reduced Oxygen carrying capacity of blood
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What lab values are reduced in anemia?
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hematocrit HCT
hemoglobin Hb |
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_______ is the percentage of whole blood that is RBCs
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Hematocrit
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___________________ is the coefficient of variation of red blood cell volume
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Red Blood Cell Distribution Width (RDW)
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_____________ is the average concentration of Hb in a volume of RBCs
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Mean cell hemoglobin concentration (MCHC)
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___________ is the average content of Hb per RBC
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Mean Cell Hemoglobin (MCH)
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_________ is the average volume of a RBC
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Mean Cell Volume (MCV)
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What are the causes of Megaloblastic anemia?
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B12, Folate deficiency
Drug use |
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Why do RBC's need to have highly pliable membranes?
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To navigate between splenic sinusoids
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What type of anemia has a membrane that is less stable and inflexible resulting in the erythrocyte not being able to leave the spleen. Condition is congenital and the RBC life span is decreased to 10-20 days?
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Hereditary Spherocytosis (hemolytic anemia)
**Mutation in ANKYRIN, a component of the RBC membrane |
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What type of anemia protects against malaria?
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Glucose-6-Phosphate Dehydrogenase Deficiency (G6PD)
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What shows up clinically as hemolysis after exposure to oxidant stress (drugs, foods-fava beans, infection)?
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G6PD deficiency
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What is shown in this picture and what anemia causes it?
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Bite cells & Heinz Bodies
Caused by G6PD deficiency |
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In sickle cell disease defective hemoglobin is produced due to ________
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Valine instead of Glutamic acid
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Among those with sickle cell disease (S/S), what percentage have what types of hemoglobin?
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80% HbS
20% HbF NO HbA |
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Among those with sickle cell trait(A/S), what percentage have what types of hemoglobin?
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60% HbA
40% HbS |
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What is the abnormal hemoglobin in sickle cell patients?
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HbS
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What is the % hemoglobin of normal adults?
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96% HbA
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What is the % hemoglobin of normal babies?
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75% HbF
25% HbA |
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What is the problem with HbS being sticky?
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The stickiness leads to cells “hanging” around in these sluggish areas; which exposes them to hypoxic environmnet, the sickling persists, the tissues become inflamed, blood flows EVEN SLOWER, WBCs release pro-imflammatory cytokines; it’s a vicious cycle!!!
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What are the treatments for sickle cell anemia?
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Hyroxyurea: increases HbF, which inhibits polymerization of HbS, decreased inflammation
Crises: exchange transfusion |
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What are Thalassemias?
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Decreased synthesis of NORMAL alpha or beta hemoglobin chain
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What is the problem we run into with Alpha Thalassemia?
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Excess of unpaired Beta chains
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What is the problem we run into with Beta Thalassemia?
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Excess of unpaired Alpha chains
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Where does hemolytic anemia (increased destruction)occur?
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Mostly in Spleen (EXTRAVASCULAR HEMOLYSIS)
Rarely in the vessels (INTRAVASCULAR HEMOLYSIS) |
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What type of anemia is congenital with a mutation in ANKYRIN, a component of the RBC membrane?
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Hemolytic Anemia: HS (hereditary spherocytosis)
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What type of anemia protects against Malaria (plasmodium falciparum)?
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Hemolytic Anemia: G6PD deficiency
Glucose-6-Phosphate Dehydrogenase Deficiency |
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What is:
- An intermittent hemolytic anemia of OLDER RBCs - Hemolysis after exposure to oxidant stress (drugs, foods-fava beans, infection) - Heinz bodies (MACROPHAGES IN SPLEEN PLUCK THEM OUT OF MEMBRANE -> BITE CELLS |
Hemolytic Anemia: G6PD Deficiency
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In Hemolytic Anemia: Sickle Cell Disease, those with disease have what type of hemoglobin?
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80% HbS
20% HbF **NO HbA** |
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In Hemolytic Anemia: Sickle Cell Disease those with trait (A/S) what is the hemoglobin content?
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60% HbA
40% HbS Patient functions fairly well |
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Which Thalassemia targets cells?
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Beta Thalassemia
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What condition has an acquired defect in RBC membrane, a mutation in phosphatidykinositol glycan A (PIGA), a GPI protein
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Paroxysmal Nocturnal Hemoglobinuria (PNH)
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Which disease has RBCs susceptible to lysis by complement - there is a decrease in ALL GPI proteins
*CD55, 59 |
Paroxysmal Nocturnal Hemoglobinuria (PNH)
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In Paroxysmal Nocturnal Hemoglobinuria (PNH), ALL RBCs ARE NOT AFFECTED. Why?
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A mutant clone exists as well as normal RBCs Present
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In RBC destruction due to trauma what shows up on a peripheral smear?
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RBC fragments AKA SCHISTIOCYTES
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What test for Immunohemolytic anemia demonstrates AB or complement bound to patient's RBCs?
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DAT (direct antiglobulin test) "Coombs Test"
- antihuman Ig - a + test has clumping/agglutination |
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What disease has laboratory findings of Hypochromic microcytic anemia (Decreased MHC & MCV)?
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Iron Deficiency Anemia
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What is important regarding anemia of chronic disease?
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Impaired Fe utilization secondary to a chronic disease (i.e. rheumatoid arthritis, infections)
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What type of anemia has Hypersegmented neutrophils & pancytopenia?
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megaloblastic anemia
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What are the properties of polycythemia?
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- Non-clonal increase in the concentration of red blood cells unlike myeloproliferative disorders
- Causes: Increased EPO (tumor or hypoxemia) & Dehydration - Clinically patients present w/difficulty breathing & thrombosis - Treatment includes therapeutic phlebotomy or hydration |
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What type of anemia presents clinically as:
- mucocutaneous bleeding and infections - splenomagaly - reticulocytopenia - normocytic, normochromic anemia |
Aplastic Anemia
*************** |
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Will vessel wall damage affect blood test results?
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No
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