vascular disease Flashcards

1
Q

pulmonary edema ensues due to (4)

A
  1. increased intracapullary hydrostatic pressure 2. decreased intracapillary oncotic pressure 3. obstructs excess fluid reabsorption by lymphatics 4. compromises capillary wall integrity
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2
Q

what type of cells do we fins in pulm edema

A

heart failure cells

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3
Q

clinical syndrome of severe hypoxemic respiratory failure

A

ARDS

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4
Q

what is the pathophysiology of ARDS and what do we see histologic

A

pathophysiology: damage to the alveolar wall-capillary endothelium and the alveolar epithelial cells histologic: diffuse alveolar damage

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5
Q

DAD time course: acute

A
  • pulm. edema and hyaline membranes
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6
Q

DAD time course: subacute organizing stage

A
  • alveolar pneumocyte hyperplasia and interstitial fibrosis - start to lose hyaline membranes
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7
Q

mortality rate of DAD

A

-35 to 50% - if pt. survives minimal residual abnormal respiratory function

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8
Q

most emboli are

A

thromboemboli

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9
Q

pulm. embolism often will have elevated

A

D-dimer

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10
Q

pulmonary infarction

A

death/necrosis of lung tissue

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11
Q

pulm HTN classifie as

A

mean pulm artery pressure <25

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12
Q

most cases of PH are secondary to another disease process

A

true

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13
Q

what becomes thickened in PH

A

smooth muscle media between internal and external elastic laminae

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14
Q

residual vessel replaced by slit-like proliferative vascular spaces

A

plexiform lesion

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15
Q

consist of proliferation of thin-walled dilates and congested vessels

A

angiomatoid lesion usually peripheral to plexiform lesion

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16
Q

concentric intimal hyperplasia in PH signifies what

A

severe PH

17
Q

primary idiopathic PH

A
  • affects women >men - age of onset 36
18
Q

primary PH show mutation in up to 50% cases in

A

coding region for BMPR2

19
Q
A

endothelial cushion with an organized olf thromboembolu

20
Q
A

concentric intimal hyperplasia with vasculitis and fibrinoid necrosi

21
Q
A

plexiform and angiomatoid lesion

22
Q
A

muscularization of an arteriole

23
Q
A

medial hypetrophy

24
Q
A

normal muscular artery

25
Q
A

refractile partciles in a drug user causing a pulm embolism

26
Q
A

multinucleated giant cell pulm embolism caused by drug us

27
Q
A

bone marrow embolism- fat

28
Q
A

pulm infarction- showing congestion of the capillaries

29
Q
A

saddle thromboembolism

30
Q
A

pulmonary thromboembolus

31
Q
A

reactive pneumocyte hyperplacia with squamous metaplasia

32
Q
A

expansion of fibroblast and decreased hyaline membrane in DAD subacute

33
Q
A

hyaline membranes in acute DAD stage

34
Q
A

chronic pulm. edema may show fibrotic thickening of alveolar septa

35
Q
A

heart failure cells

36
Q
A

interstitial vascular congestion and fluid in alveolar spaces