dani - hemodynamic dysfunction II Flashcards

1
Q

____: an insoluble mass circulating the blood

A

embolus

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2
Q

___: an occlusion or obstruction of a blood vessel by an embolus

A

embolism

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3
Q

3 types of embolism

A

thromboembolism
fat
air/gas

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4
Q

____: fragmented or detached thrombi

A

thromboembolism

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5
Q

thromboembolism occurs ___% of the time

A

98

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6
Q

site of thromboembolism depends on origin (2)

A

pulmonary

systemic

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7
Q

Pulmonary embolism:

emboli are derived from ____ of systemic veins

A

thrombi

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8
Q

Pulmonary embolism:

large emboli –> impacted in ____ artery or its main branches –> ____ obstructions and sudden ____

A

pulmonary
circulatory
death

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9
Q

Pulmonary embolism:

medium sized and small emboli –> no effect because blood supplied by ___ artery

A

bronchial

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10
Q

Pulmonary embolism:

small end-artery embolus does result in associated infarction causing ____ and ___ pain

A

hemoptysis

chest

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11
Q

Pulmonary embolism:

multiple emboli over time may cause ___ hypertension with ___ sided heart failure

A

pulmonary

right

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12
Q

systemic embolism:

- emboli are derived from ___ thrombi

A

mural

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13
Q

systemic embolism:

- mural thrombi due to ___ ___

A

myocardial infarction

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14
Q

systemic embolism:

- mitral ___ and atrial ____

A

stenosis

fibrillation

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15
Q

systemic embolism:

- aortic ___ or ___ plaque

A

aneurysm

atheromatous

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16
Q

___ embolism: second most frequent type of emboli

A

fat

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17
Q

____ embolism: fat globules enter blood after fracture or long bones or extensive trauma to fatty tissue

A

fat

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18
Q
fat embolism (more than 20u)
- arrested in lung --> \_\_\_\_
A

dyspnea

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19
Q

fat embolism (less than 20u)

  • pass to ___ circulation
  • arrested in brain: 3
  • arrested in skin: 2
A
- systemic
BRAIN
- ischemia
- necrosis
SKIN
- hemorrhage
- hemorrhagic rash
- thrombocytopenia
20
Q

diagnosis of a fat embolism

  • clinically:
    • ___ distress
    • ___ dysfunction
    • ____ rash more than 1-3 days after trauma
A

respiratory
cerebral
skin

21
Q

diagnosis of a fat embolism

- fat globules in ____ and ___

A

sputum

urine

22
Q

air embolism

  • air enters
  • air passes to ____ ____ and mixes with blood
  • frothy mass that obstructs (excess of ___mL of air is required)
A

right ventricle

23
Q

gas (nitrogen) embolus occurs in ____ disease and ____ sickness

A

caisson

decompression

24
Q

gas emboli in the brain causes ___

25
gas emboli in muscles and nerves causes severe ____ and ___
contractions | pain
26
gas emboli in the lung causes ____
dyspnea
27
_____: area of localized ischemic necrosis produced either by occlusion of arterial supply or venous drainage
infarction
28
pale, white, anemic infarct | - arterial obstruction in ___ organs with poor _____ circulation
solid | collateral
29
pale, white, anemic infarct | occurs in 4 places
spleen heart kidney brain
30
red, hemorrhagic infarct - obstruction of ___ outflow and congestion - ____ organs - organ with ___ blood supply or collateral vessels - twisted pedicle of ___ or ____
``` venous loose double ovaries testis ```
31
septic infarct - ___ embolus - organs normally containing ____ - ___ from blood
infected bacteria bacteria
32
___: decreased tissue perfusion associated with decrease in effective cardiac output
shock
33
3 types of shock
cardiogenic hypovolemic due to peripheral sequestration of BV
34
___ shock: decreased CO due to heart failure
cardiogenic
35
4 examples of cardiogenic shock
myocardial infarction massive pulmonary embolism cardiac tamponade arrhythmias
36
____ shock: decreased CO due to decreased BV
hypovolemic
37
2 examples of hypovolemic shock
hemorrhage | fluid loss
38
___ shock: endotoxin of gram negative bacteria
septic
39
____ shock: chemjcal mediators of allergy
anaphylactic
40
____ shock: anesthesia, spinal cord injury
neurogenic
41
3 stages of shock
compensation impaired tissue perfusion irreversible stage
42
compensation stage of shock | - decreased CO --> mild ___ --> reflex ___ stimulation --> ____
hypotension sympathetic tachycardia
43
peripheral vasoconstriction - skin: ____ and ____ - renal arterioles: ____ glomerular filtration --> ___ urine output
cold and clammy decreased decreased
44
prolonged vasoconstriction in the stage of impaired perfusion of shock - promotes ___ glycolysis --> ___ __
anaerobic | lactic acidosis
45
irreversible stage of shock | - failure of peripheral ___ --> ___ --> fall in BP and impairment of perfusion of brain and heart
vasoconstriction | vasodilation
46
recovery from shock - ___ age - ___ general health - availability of ___ treatment
younger good early
47
progression of shock - ___ in treatment - ___ age - ___ health - ___ as infection and necrosis
delay old poor complication