Cardiovascular System (Exam 2) Flashcards
(96 cards)
What are the most common type of birth defect?
congenital heart defects (DECREASED CARDIAC OUTPUT)
What are some risk factors for congenital heart defects?
heredity
genetic disorders (DOWN SYNDROME)
fetal substance exposure
maternal health status (obesity, diabetes, etc.)
Name 4 manifestations of congenital heart defects (8 total)
• HEART FAILURE
• heart murmurs
• dyspnea
• tachypnea
• cyanosis
• fatigue
• chest pain/discomfort
• difficulty gaining weight
What is pericarditis and what are some possible causes?
inflammation of the pericardium by viral infection, thoracic trauma, myocardial infarction, TB, malignancy, and autoimmune disorders
What can pericarditis cause?
pericardial effusion
What is pericardial effusion?
fluid accumulates in space between pericardial sac and heart, where swollen tissue creates friction
What is cardiac tamponade?
life-threatening cardiac compression from fluid accumulation (pleural effusion)
COMPLICATION OF PERICARDITIS
Name 4 manifestations of cardiac tamponade
• falling arterial pressures
• rising venous pressures
• narrowing pulse pressure
• muffled heart sounds
What is constrictive pericarditis?
loss of elasticity from chronic inflammation
Name 4 manifestations of constrictive pericarditis (7 total)
• pericardial friction rub (grating sound)
• sharp, sudden and severe chest pain that increases with DEEP RESPIRATIONS and decreases when SITTING UP/LEANING FORWARD
• dyspnea
• tachycardia
• palpitations
• edema
• flulike symptoms
What is infective endocarditis (bacterial endocarditis) and what is it commonly caused by?
infection of the endocardium and heart valves
STREPTOCOCCUS AND STAPHYLOCOCCUS
In infective endocarditis, thrombi form that travel (emboli), causing…?
microemboli and microhemorhage
Name 4 manifestations of infective endocarditis (7 total)
• flulike symptoms
• embolization (blockage of blood flow)
• new onset heart murmur
• petechiae (small brown spots on skin from bleeding)
• splinter hemorrhages under nails
• hematuria (RBCs in urine)
• oslers nodes
• edema
What are some risk factors regarding infective endocarditis?
IV drug use
valvular disorder
prosthetic heart valves/implanted devices
rheumatic heart disease
aortic coarctation
congenital heart defect
Marfan syndrome
Name 3 life threatening complications of infective endocarditis
MYOCARDIAL INFARCTION
STROKE
PULMONARY EMBOLISM
What is myocarditis?
uncommon and poorly understood inflammation of the myocardium by organisms, blood cells, toxins, and immune systems that damage the muscle
Name 4 complications of infective myocarditis
HEART FAILURE
CARDIOMYOPATHY
DYSRHYTHMIAS
THROMBUS FORMATION
Name 6 manifestations of infective myocarditis (12 total)
• flulike symptoms
• dyspnea
• dysrhythmia
• palpitations
• tachycardia
• heart murmurs
• chest discomfort
• cardiomegaly
• pale and cool extremities
• syncope
• decreased urine output
• joint pain and swelling
What are valvular disorders and what can they lead to?
includes stenosis and regurgitation of one or more heart valves
LEADS TO DISRUPTION OF BLOOD FLOW
What is valve stenosis and what does it do?
NARROWING; less blood can flow through the valve
DECREASES CARDIAC OUTPUT, INCREASES WORKLOAD, CAUSES HYPERTROPHY
What is atresia?
failure to open valve, MAY ACCOMPANY STENOSIS
What is valve regurgitation and what does it do?
INSUFFICIENT CLOSURE; bidirectional blood flow
DECREASES CARDIAC OUTPUT, INCREASES WORKLOAD, CAUSES HYPERTROPHY AND DILATION OF VENTRICLES
What are some causes of valvular disorders?
congenital defects
infective endocarditis
rheumatic fever
myocardial infarction
cardiomyopathy
heart failure
MANIFESTATIONS MAY VARY BUT REFLECT CHANGED CARDIAC FLOW
What is cardiomyopathy?
acquired or inherited conditions that weaken and enlarge myocardium; disease that makes it harder to pump blood
CAN LEAD TO HEART FAILURE