Flashcards in Thrombosis and Embolism Deck (27):
1
What is the term for normal blood flow?
Laminar
2
What is the term for stagnant blood flow?
Stasis
3
What is the term for unpredictable forceful flow?
Turbulance
4
What are the 2 main causes for problems in blood flow?
Thromboembolism
Atheroma
5
What is Virchow's triad?
A group of 3 main factors that cause thrombosis
6
What are the 3 factors involved in Virchow's triad?
Changes in blood vessel wall
Changes in blood constituents
Changes in blood flow patern
7
What is thrombosis?
The formation of a solid mass formed from blood constituents within the vascular system
8
What is the main cause for changes in the blood vessel wall?
Atheroma
9
What is a common cause for changes in the blood flow constituents?
Hypercholesterolaemia
10
What are 3 common clinical conditions related to thrombosis?
DVT (deep venous thrombosis)
Ischemic limb
MI
11
What is recanalisation?
The process of restoring blood flow to normal
12
What can propogation (spreading) of thrombosis lead to?
An embolism
13
What is an embolism?
The movement of abnormal material in the blood stream and impact in a vessel
14
What is an embolus?
A detached intravascular mass
15
What are the 2 types of thromboembolus?
Arterial & venous
16
Where do venous thromboemboli originate from?
Lower limbs (deep venous thromboses)
17
Where do venous thromboemboli travel to>
The pulmonary arterial circulation
18
What are 3 consequences of pulmonary thromboemboli?
Pulmonary infarction
Pulmonary hypertension
Right ventricular failure
19
What are 2 social risk factors for DVT and pulmonary thromboembolism?
Increased age
Obesity
20
When do fat emboli appear?
After major fractures
21
What 3 organs can fat emboli affect?
Brain
Kidneys
Skin
22
What is decompression sickness?
When N2 formed from rapid decompression lodge in the capi;;aroes
23
What are 2 causes of air emboli?
Head and neck wounds
Surgery
24
What type of emboli could be found in a pregnant woman's lungs?
Trophoblasts
25
What type of embolus is infective endocarditis related to?
Septic material
26
What type of embolus can be caused by childbirth?
Amniotic fluid
27