pulmonary vascular disorders Flashcards

1
Q

What provides the supportive blood supply to the parenchyma in the lung

A

bronchial vessels

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2
Q

What is the job of the lymphatic system in the lungs

A

remove both infectious material and excess fluid

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3
Q

What is the path of the lymphatic system in the lungs

A

moves towards the hilum and drains in the right thoracic lymphatic duct

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4
Q

What are some causes of PE

A

DVT
Fat embolism
Air embolism
amniotic embolism

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5
Q

What is the active form of plasminogen

A

plasmin

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6
Q

How long do you treat a provoked clot

A

3 months of anticoagulation

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7
Q

how long do you treat an unprovoked clot

A

forever

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8
Q

What is the most common cause of a fat embolism

A

From injury to a long bone

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9
Q

What is septic emboli most commonly associated with

A

IVDU will affect the right side of the heart (*S. Aureus)

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10
Q

What type of embolism can you get from scuba diving

A

air embolis

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11
Q

When do amniotic emboli occur

A

during labor or immediately post partum

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12
Q

Who are at increased risk for amniotic embolism

A

premature delivery
advanced maternal age
preeclampsia
C-section
Polyhydramnios
abnormal placental attachment site

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13
Q

What are the classifications of PEs

A

massive (HD instability)
Submassive w/ Right heart strain
Submassive w/o right heart strain
subsegmental

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14
Q

If a patient has a massive PE, what happens to their pulmonary pressure

A

May go up by >40mmHg (

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15
Q

What is normal pulmonary atrial pressure

A

12-16mmHg

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16
Q

Where does pulmonary hypertension occur

A

High flow, low resistance area of vasculature

17
Q

What is the pathophys of pulmonary hypertension

A

occlusion/constriction of the capillary arterioles within the pulmonary vasculature
-vasoconstriction from pulmonary dysfunction
-remodeling of smooth muscle
-thrombosis

18
Q

What is considered severe pulmonary HTN

A

> 55mmHg

19
Q

What are common causes of pulmonary HTN

A

PE
ARDS
COPD
interstitial lung disease

20
Q

What is pulmonary venous HTN due to

A

associated with left sided heart disease

21
Q

What is primary hypertension

A

pulmonary vasculature is the only area affected

22
Q

What is secondary pulmonary hypertension

A

results when there is a known cause and something else is involved in the disease process

23
Q

What occurs in the lung with primary pulmonary hypertension

A

vascular wall remodeling
pulmonary vasoconstriction
increased risk thrombi

24
Q

What can cause secondary hypertension

A

COPD
interstitial lung disease
*causes primary lung disease that then leads to pulmonary HTN

25
Q

What is primary pulmonary HTN caused by

A

HIV
MEdication
Cocaine
Chemo
collagen

26
Q

What is cor pulmonale

A

Downstream cardiac effect that leads to hypertrophy and dilation of RV

*otherwise known as right sided heart failure