CVD: pulmonary embolism + learning outcome Flashcards
What is a pulmonary embolism?
Complication arising from deep vein thrombosis: blood clot blocking pulmonary artery or its branches.
When to the lungs: embolus
Symptoms Pulmonary embolism?
Symptoms:
dyspnea,
tachycardia (increase heart rate),
hypoxemia (low oxygen in blood),
hypotension/hypertension
pain in the area where the clot has lodged, damage to the lung,
cough, even death.
Threatening -> medical attention needed immediately
What is the difference between a thrombus and embolus?
thrombus = blood clot
Embolus = dislodged thrombus (able to travel).
Diagnosis pulmonary embolism?
dilated pulmonary vessels,
presence fluid,
elevated hemidiaphragm,
wedged opacity on CT
Risk factors pulmonary embolism?
Risk factors:
- pregnancy
- age
- cardiopulmonary disease
- malignant disease
- immobile
- surgery
- fracture
- varicose veins
How is a pulmonary embolism treated?
oxygen, pain killers, fluid, administration warfarin, thrombolytics in case of emergency
What is the prevalence of hypertension?
more than 30% of the adult population worldwide, more than one billion people around the world.
Why does blood pressure increase with ageing?
Bc the arteries stiffen
the five types of lipoprotein particles?
In descending order of density:
High-Density Lipoproteins (HDL)
Low-Density Lipoproteins (LDL)
Intermediate Density Lipoproteins (IDL)
Very Low-Density Lipoproteins (VLDL)
Chylomicrons.
How are lipoproteins structured?
- consist of a central core of cholesterol esters + triacylglycerols that are nonpolar
- central core is surrounded by amphipathic molecules:
- apolipoproteins
- free cholesterol
- phospholipids
They are hydrophilic
What is the role of HDL?
The role of HDL is to collect fat molecules such as phospholipids, cholesterol, and triglycerides in the cells of the body and transport it to the liver to be broken down.
What is the role of LDL?
LDL is important for the transport of fat molecules such as phospholipids, cholesterol, and triglycerides around the body
What is the role of IDL?
transports a variety of triglyceride fats and cholesterol
What is the role of VLDL?
transportation of triglyceride from the liver -> adipose tissue for storage.
What is the role of chylomicrons?
transportation of triglycerides in the GI tract to other parts of the body (liver, skeletal tissue, adipose tissue)