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45 Cards in this Set

  • Front
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Autoimmune


Hemolytic


Anemia

*Systemic disease (SLE, CLL)


*Mycoplasma, drugs


*Fatigue based on degree of anemia


*Elevated indirect bilirubin, no bilirubin in urine< ALT normal


*Coombs positive




* Treat with steroids, cytotoxic agent; refractory cases--> splenectomy, IV immunoglobulins

G6PD Deficiency

* Acute oxidant stress


* Elevated indirect bilirubin, no bilirubin in urine, ALT normal


* Negative Coombs test


* Bite cells, Heinz bodies

ITP

* Epistaxis, petechiae, purpura, +/- DI/CNS bleeding


* Low platelet count


* Normal-sized spleen


* Positive antiplatelet antibodies


* Increased megacariocytes on bone marrow
Associated with lymphoma, CLL, HIV, and connective tissue diseases

ITP




Treatment

1. Steroids (prednisone or dexamethasone for 4-6 wks, followed by gradual taper):


-- Only use in patients with counts <50,000/mm who are at high risk for bleeding


2. IV gammaglobulin (IgG) if acute increase in platalet counts are required with severe bleeding


3. Splenectomy for reccurent disease


4. Subsequent trestments:


-- Danazol or cytotoxic agent


5. Platelet transfusions reserved for acute, unresponsive bleeding

Syntetic trombopoetins




for ITP

* Romiplostim




* Eltrombopag

Von Willebrand




Disease

* Platelet-type bleeding


* Normal platelet count


* Prolonged bleeding time, decreased vWF levels, +/- prolonged PTT


* Ristocetin cofactor assay




Treat with DDAVP or Factor VIII replacement

DIC

* Both platelet-type and clotting-factor type bleeding


* Usually with other major disease


* Elevated PT and PTT


* Low platelets, Positive D-dimer, Elevated fibrin split products, and low fibrinogen levels




Treat with FFP +/- platelets transfusion


Treat primary disease

SSD




Treatment Plan

1. Agressive pain management with narcotic analgesics


2. Hydration


3. Oxygen


4. Antibiotics (cefotaxime or ceftriaxone) if there is fever or leukocytosis


5. Exchange transfusion if the hypoxia does not correct with supportive measures


6. Hydroxyurea to decrease frequency of crisis in the future


7. Pneumococcal vaccine


8. Chronic folate supplementation

Vitamin K




Deficiency

* Decreased intake of green, leafy vegetables


OR


* Eradication of flora with antibiotics


* Elevated PT first, then PTT


* Normal platelets




Replace vit K PO, SQ, or IV

Factor




Deficiency

* Usually just an elevation of either PT or PTT


* Mixing study corrects PT if deficiency;


remains abnormal if inhibitor is present


* Factor XI deficiency - elevated PPT, normal PT, Askenazic Jews

Russell viper




venom test

* Performed after Mixing study is abnormal


* If abnormal --> LAB fenomen

Factor Inhibitor

* History of frequent factors VIII or IX replasement


* Elevated PTT +/- PT


* Mixing studies do NOT correct


* Specific antibody testing required


* Overcome with high-volume factor replacement


* Suppress antibody inhibitor with steroids

Lupus


Anticoagulant




Anticardiolipin


Antibodies

* History of autoimmune disease, HIV infectiion


* No bleeding; thrombophilia


* Recurrent DVT, PE, spontaneous abortion


* False + VDRL and false elevated PTT --> just markers for disease


* Arterial and venus trombosis


* Bleeding time and platelet count normal


* Russell viper venom test prolonged


- No treatment if asymptomatic;


- Otherwise warfarin to target INR of 2-3

Major Blood


Group


Incompatibility

* Usually a clerical error with immidiate, severe, and life-threatening reaction


* Hypotension, dyspnea, back pain


* Elevated indirect bilirubin; positive Coombs test; fragmented red cells on peripheral smear


* Hemoglobin in urine; free hemoglobin in plasma; low haptoglobin; elevated LDH


-- Stop transfusion; start hydration, mannitol

Anaphylaxis


Secondary


to IgA Deficiency

* Dyspnea, bronchospasm, hypotension after only a few milliliters of transfusion given


* Reaction to donor IgA


* No hemolysis




-- Give Epi; steroids if severe


-- Use IgA-deficient plasma and washed RBCs

Febrile


Nonhemolitic


Transfusion


Reaction

* Fever, rigors, and chills with transfusion


* Caused by reacting to antigens or donor WBCs


* No hemolisis, bronchospasm, dyspnea, or urticaria




-- Give acetaminophen acutely


-- Used leukocyte-reduced, filtered blood to prevent

Multiple




Myeloma

* Bone pain from fractures


* Monoclonal spike in IgG or IgA


* Bence Jones protein in urine


* Anemia and renal falure


* Plasma cells >30% bone merrow biopsy



Multiple


Myeloma




tests & treatment

-- Best initial test --> Serum protein electrophoresis (SPEP)


-- Bone marrow biopsy confirm the diagnosis


-- Bone scan shows nothing (good for blastic activity, MM is litic )




The Best innitial therapy: Thalidomide and steroids


After --> control disease with allogenic bone marrow transplant


most common cause of death of MM is infection

Monoclonal


Gammopathy of


Undetermined


Sygnificance

* Monoclonal spike without any of above findings


* No specific therapy


* Monitor for progression to multiple myeloma

Coagulopathy


Prolonged PT or PTT

Think about


bone marrow abnormality


if you see:

-- progressive fatigue


-- frequent infections


-- easy bruisability


-- heavy periods


-- B12 or folate deficiency


-- HIV

Vit B12


or


Folate Deficiency

* For B12 deficiency:


-- low serum levels of vitamin


-- elevated methylamonic acid




* For Folate deficiency:


-- normal methylamonic acid


-- elevated homocysteine level

Myelofibrosis

* Patients over 50; splenomegalia


* Low, normal or increased WBC count


* Numerous teardrop cells on smear


* Marrow with increased reticulin fibers


* No specific therapy


- Talidomide and lenalidomide increase bone marrow production;


- Ruxolitinib inhibits JAK2 and suppresses myelofibroses

Beta


Thalassemia


Minor

* Asymptomatic or with mild microcytic anemia


* Profoundly low MCV with NO symptoms


* Increased RBC number, normal RDW, target cells; normal iron studies


* Definitive diagnosis with hemoglobin electrophoresis:


-- increased Hb A2 and Hb F

Alpha


Thalassemia


Trait

* identical presentation to Beta Thalassemia




* Hb electrophoresis NORMAL

Sideroblastic


Anemia

* Usually from toxin ingestion, most commonly alcohol, rarely lead


* Microcytic, hypochromic anemia


* Normal ferritin


* Increased serum iron level


* Diagnose with Prussian-blue stain


* Some respond to vit B6 replacement

Iron Deficiency


Anemia

* Increased blood loss leading to iron store depletio


* Microcytic anemia with decreased RBC number; elevated RDW; low reticulocyte count


* Low ferritin, low iron, increased TIBC


* Treatment is to replace iron

Confirmation of


Diagnosis CLL

Lymph node biopsy



(not Bone marrow biopsy)

Acute Monocytic


Leukemia

-- headaches


-- fever


-- weight loss


-- bleeding from the gums or nose


-- occasional skin lesions


* Peripheral smear reveals leukocytosis with high proportion of blast forms


* Alpha-naphthyl esterase positive and is characteristic

CML

* High WBC count and normal appearing neutrophils


* Philadelphia chromosome and BCR/ABL positive


* Treat with imatinib


* BMT is curative

CLL

* Eldery


* High WBC is all lymphocytes


* Normal smear exept "smudge cells"




Treat with Fludarabine or Chlorambucil



Richter phenomenon

Conversion of CLL into high-grade


lymphoma (in 5% of patients)

Hairy Cell Leukemia

-- Limphocytes have fine, hair-like, irregular projections


-- Bone marrow may become fibrotic


-- Cytochemical feature includes a tartrate-resistant acid phosphatase (TRAP) stain




Treat with Cladribine or Pentostatin


its adverse effects include neurological and kidney damage

Epsilon amino caproic acid

* Substance that inhibits fibrinolisis




* Used in DIC to increase dissolution of fibrin

Aquired storage pool disorder

Uremia makes platelets non-functional




Give DDAVP

HIT


The most accurate test

Platelet factor four antibodies

Which mexhanism of


HUS

Decrease in ADAMTS 13

Best initial therapy


in HUS and TTP

* Miled disease -- No tretment




** Severe -- FFP or plasmapharesis

Paroxysmal Nocturnal Hemoglobinuria




Diagnostic Tests

-- Decay accelerating factor (CD55 and CD59)




-- Ham test




-- Flow cytometry

Paroxysmal Nocturnal Hemoglobinuria




Treatment

1. Prednison


2. Allogenic bone marrow transplant (cure)


3. Eculizumab - for hemolysis and thrombosis


4. Folic acid and transfusion as needed

Tested facts for




Acute Leukemias:

NHL




Treatment

HL




Treatment

Wandenstrom




Macroglobulinemia

* Overproduction of IgM from malignant B cells leading to hyperviscosity


Presents with:


- Lethargy


- Blurry vision and vertigo


- Endorged blood vessels in the eye


- Mucosal bleeding


- Raynaud phenomenon


* Plasmapheresis - best initial therapy


* Rituximab or prednisone - long-term


* Bortezonib or lenalidomide - lower productions of cells