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50 Cards in this Set
- Front
- Back
Patency
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opening that should close upon birth....results in murmer
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2 common defects of patency
ASD |
Foramen stays open instead of closing at birth
greater pressure of left atrium...pushes blood into rigt atrium...greater volume of blood goes into lungs..may have congestion |
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VSD
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Most common heart defect
muscle of ventricular wall doesnt completely grow together...excessive blood going into lungs. |
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Venous disease
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lead to problems related to blood pooling in peripheral veins...known as venous stasis or venous congestion
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Arterial disease
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lead to problems related to ischemia....associated with narrowing of arterial vessels
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Venous insufficiency
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problems with backflow.
veins have valves..venous insuficiency is floppy valves |
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Venous thrombus
DVT |
Virchow's triad-
injury to endothelium vein stasis of blood flow hypercoagulability |
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Thrombophlebitis
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vein inflammation due to thrombus.
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venous embolus
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part of thrombus that breaks off
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Coumadin
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decreases bodys ability to clot by diminishing ability of vitamin k to participate in synthesis of prothrombin.
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Heparin
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combines with antithrombin to block thrombin
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Arteriosclerosis
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Chronic disease in which artery walls become thick and harden
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Atherosclerosis
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fatty deposit......DECREASED PERFUSION
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Hypertension
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consistent elevation of systemic arterial blood
PRIMARY HTN- or idiopathic..most common. SECONDARY HTN- caused by disease process such as a tumor. |
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Patho of HTN
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Overactivity of sympathetic nervous system and
overactivity of RAAS |
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Peripheral artery disease (PAD)
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disease of arterial vessels outside the heart....usually caused by hypertension..
ischemic pain fem-pop bypass. |
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Aneurysms
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localized dilation or outpouching of arterial vessel wall.
PAD and HTN increase risk brain and aorta susceptible |
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Arterial thrombi
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forms in pockets where arterial flow is sluggish or where artery walls are injured
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Sinoatrial node
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just above tricuspid valve...AKA pacemaker of the heart...60-100 beats per min. Gets nourishment from right coronary artery.
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Cardiac output
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4-6 ml/min
4 factors: preload, afterload,HR, and contractility. |
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Preload
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Blood in circulatory system.....blood coming back to the heart.
veins and volume |
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Afterload
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arteries and resistance
resistance to ejection of blood from ventricles. |
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SVR
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afterload to the left ventricle ejection of blood.
Increase in SVR- VASOCONSTRICTION CO DECREASES Decrease in SVR- VASODILATION CO INCREASES |
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PVR
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afterload to the right ventricle ejection of blood
Increase in PVR VASOCONSTRICTION |
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Inotrope
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anything that affects the contractility of the heart.
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Bradycardia
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less than 60 beats per minute
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Tachycardia
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greater than 100 beats per minute
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PVC
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Early beat that originates in the ventricles instead of SA node.....feels like heart skipping a beat.
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VFIB
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Causes ventricles to quiver instead of contracting.
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Hypokalemia
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hyperpolarizes myocardial cells making it harder for SA node to fire....sluggish heart.
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Hyperkalemia
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Renal problems because kidneys cant excrete K normally
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CAD
Coronary artery disease |
A vascular disorder that narrows or occludes the coronary arteries.
Link between CAD and elevated levels of homocysteine |
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Infarction
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tissue necrosis that is due to ischemia
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Angina
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pain can radiate to left arm, jaw, and back.\buildup of lactic acid.
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RCA
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feeds oxygen and nutrients to right ventricle and posterior portion of heart and SA node.
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LCA
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feeds oxygen and nutrients to left artium and ventricle.
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CAD Classification
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stable angina and acute coronary syndrome
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stable angina
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slow development of plaque..may only form with vigorous exercise...symptoms go away when one NTG tablet is taken.
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acute coronary syndrome
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sudden plaque development or worsening of existing plaque...manifested by unstable angina or myocardial infarction
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unstable angina
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someone with stable angina develops a change for the worse...may need 3 NTG tabs
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Myocardial infarction
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higher troponin level ..more extensive the damage.
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acute pericarditis
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inflammation of outer lining of heart....causes irritation of the membranes and increases the amount of pericardial fluid. can be caused by autoimmune disorders or a sequela of MI. Chest pain when lying down.
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Endocarditis
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caused when bacteria or other microbe enters the heart via bloodstream.
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rheumatic fever
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autoimmune disease triggered after strep infection
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stenosis
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narrowing, stiffness...adversely affects full opening...chanber behind must work harder to eject blood.
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LHF
Left heart failure |
AKA Congestive heart failure...left ventricle is unable to generate adequate CO.
Symptoms are lung related problems Cardiogenic pulmonary edema. |
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RHF
Right heart failure |
LHF is the most common cause of RHF....when RHF is caused by a lung process known as Cor Pulmonale
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BNP
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Measures heart failure....BNP is triggered when we have fluid overload.
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shock
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inadequate perfusion of tissues...usually do to hypotension.
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Cardiogenic shock
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shock occurs when there is inadequate cardiac output.
would give a positive inotrope. |