haematological emergencies large group Flashcards

1
Q

what are the coagulation tests that should be ordered for a COVID patient ?

A

D-dimer
Prothrombin
Platelet
Fibrinogen
in that order of imp

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2
Q

what is the management for PE ?

A

oxygen therapy
pain relief
anticoagulant therapy

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3
Q

what workup should be performed for a patient when looking for familial thrombophilia ?

A

1- test for protein c or protein s deficiencies
2- anti thrombin deficiency
3- factor V leiden or MTHFR mutation

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4
Q

what advice should patients with thrombophilia take ?

A

avoid oral contraceptives
wear compression socks when they have long flights
avoid smoking
get other family members tested

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5
Q

what is the advantage of LMWH over unfractionated heparin ?

A

LMWH has long half life and it has a more predictable dose-response

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6
Q

what is the normal INR value ?

A

in patient not on anticoaglation therapy - 1
therapeutic aim 2-3

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7
Q

what is the effect of warfarin on INR ?

A

warfarin slows down how long it takes for blood clots to form
so the INR increases

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8
Q

what does prolonged PT and PTT indicate ?

A

deficiency in coagulation factors

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9
Q

how does warfarin affect coagulation factors ?

A

warfarin depletes vitamin k which is necessary for the activation of coagulation factors

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10
Q

what drug is contraindicated to warfarin ?

A

amiodarone

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11
Q

what is coumadin ?

A

warfarin

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12
Q

what is the most appropriate management for warfarin toxicity ?

A

stop warfarin
continue on a low dose of warfarin only when the INR reaches 1.56

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13
Q

what does a short PTT indicate ?

A

higher chance of thrombus occurring

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14
Q

what is the pre op management of a patient with factor 12 deficiency ?

A

no management doesn’t cause bleeding

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15
Q

what further investigation can be done to find the specific cause of prolonged or abnormal Pt and PTT?

A

mixing study

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16
Q

what are the causes of isolated prolonged PTT ?

A
  • Lupus anticoagulant
  • von Willebrand disease with low facto VIII
  • Intrinsic pathway coagulation factor defect like factors VIII & IX
17
Q

what is the best management for a patient with factor 11 deficiency pre op ?

A

give plasma concentrate of factor 11

18
Q

if a patient presents with isolated thrombocytopenia with nothing else what is the most appropriate diagnosis ?

A

ITP

19
Q

is a marrow examination indicated in cases of isolated thrombocytopenia ?

A

only after a diagnosis of ITP has been made and an attempt to treat it has happened and deemed unsuccessful

20
Q

what are the causes of microcytic anemia ?

A

thalassemia
anemia of chronic disease
iron deficiency anemia
lead poisoning

21
Q

anemia secondary to defective iron absorption due to IL-6 is what type of anemia ?

A

anemia of chronic disease

22
Q

what is the most common cause of inherited thrombophilia ?

A

factor V leiden

23
Q

what is the best site for a bone marrow aspirate in a young patient ?

A

posterior superior iliac spine