MKSAP HemeOnc IV Flashcards

1
Q

Patients identified as low risk and meeting the Pulmonary Embolism Rule-Out Criteria do not require ____ to eliminate the need for further diagnostic imaging.

A

D-dimer testing

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2
Q

Chemotherapy with ____ is used for patients with CML in blast crisis with more than __ blasts and is not intended for the chronic phase

A

idarubicin and cytarabine; 20%

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3
Q

What is imatinib/dasatinib/nilotinib?

A

tyrosine kinase inhibitor; targets CML with BCR-ABL fusion gene

Approximately 90% of patients with CML present in the chronic phase with less than 10% blasts in the blood and bone marrow.

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4
Q

Pt presents with pancytopenia with significant intravascular hemolysis and hemoglobinuria. Nonspecific abdominal pain and fatigue.

A

Paroxysmal nocturnal hemoglobinuria

Caused by a mutation in the gene that regulates production of glycophosphatidylinositol-anchoring proteins.

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5
Q

Diagnosis of paroxysmal nocturnal hemoglobinuria is based on ____ which can detect CD55 and CD59 deficiency on the surface of peripheral erythrocytes or leukocytes.

A

flow cytometry

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6
Q

Patients with coagulopathy of liver disease and low fibrinogen levels who are experiencing bleeding should receive immediate ____ transfusion.

A

cryoprecipitate

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7
Q

Fibrinogen levels less than ____ associated with active bleeding should be corrected.

A

100

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8
Q

It is often difficult to distinguish between disseminated intravascular coagulation (DIC) and the coagulopathy of liver disease, but ___ level points to liver disease instead of DIC.

A

a normal or increased factor VIII

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9
Q

chronic microcytic anemia with hemoglobin levels of approximately 10 g/dL (100 g/L) and a normal hemoglobin electrophoresis pattern

A

alpha thal trait

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10
Q

chronic microcytic anemia with elevated Hgb A2 and Hgb F

A

B thal minor

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11
Q

Patients with asymptomatic INR elevation between ___ and ___ are managed by simply withholding warfarin.

A

4.5 and 10

The 30-day risk of major bleeding is less than 1% with an INR between 5 and 9.

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12
Q

For patients with an INR greater than ___, oral vitamin K, ___ mg, should be given.

A

10; 2.5

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13
Q

How is pre-eclampsia defined?

A

hypertension, edema, and proteinuria after the 20th week of gestation.

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14
Q

pre-eclampsia vs HELLP vs thrombotic thrombocytopenic purpura-HUS

A

Pre-eclampsia: SBP >140/DBP>90 after 20th week with edema and proteinuria, can have DIC parameters

HELLP: RUQ pain elevated LFTs, DIC parameters

TTP-HUS: MAHA and low plt in 1st or 2nd trimester with neuro findings and fever; no DIC

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15
Q

A history of mucosal or endometrial bleeding, normal prothrombin and activated partial thromboplastin times, and normal platelet count with evidence of a qualitative platelet defect suggest ____.

A

von Willebrand disease

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16
Q

Prolonged aPTT that corrects with mixing studies and a normal PT is suggestive of ___

A

Congenital hemophilia (Assay of individual factor levels would confirm factor deficiency)

17
Q

aPTT is prolonged and does not correct when mixed with normal plasma

A

lupus anticoagulant

18
Q

HgbS trait vs HbSB-thal

A

HbS trait- HbS levels ~30% with more HgbA, usually normal Hgb levels and no pain crises

HbSB-thal: milder disease than HbSS, HbA 5-30%; Hbs 60%, chronic anemia (the more HbA, the less disease (HbSS have HbS >90% and no HbA, increased HbF)