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148 Cards in this Set
- Front
- Back
Afterload |
The amount of resistance to ejection of blood from the ventricle |
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Apical Impulse |
Impulse normally palpated at the 5th intercostal space, left mid-clavicular line; caused by contraction of the left ventricle. |
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Acute Coronary Syndrome |
Refers to rupture of an atheromatous plaque in a diseased coronary artery, which rapidly forms an obstructive thrombus. |
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AV Node |
Secondary pacemaker of the heart, located in the right atrial wall near the tricuspid valve |
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Baroreceptors |
Nerve fibers located in the aortic arch and carotid arteries that are responsible for reflex control of the blood pressure |
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Cardiac Catheterization |
An invasive procedure used to measure cardiac chamber pressures and assess latency of the coronary arteries |
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Cardiac Conduction System |
Generated and transmits electrical impulses that stimulate contraction of the myocardium. |
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Cardiac Output |
Amount of blood pumped by each ventricle in liters per minute |
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Cardiac Stress Test |
A test used to evaluate the functioning of the heart during a period of increased oxygen demand |
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Contractility |
Ability of the cardiac muscle to shorten in response to electrical impulse
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Depolorization |
Electrical activation of a cell caused by the influx of sodium into the cell while potassium exits the cell |
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Diastole |
Period of ventricular relaxation resulting in ventricular filling |
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Ejection Fraction |
Percentage of the end-diastolic blood volume ejected from the ventricle with each heartbeat |
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Hypertension |
BP that is persistently greater than 140/90 |
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Hypotension |
A decrease in BP to less than 100/60 that compromises systemic perfusion |
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Murmers |
Sounds created by abnormal, turbulent flow of blood in the heart |
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Myocardial Ischemia |
Condition in which heart muscle cells receive less oxygen than needed |
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Myocardium |
Muscle layer of the heart responsible for the pumping action of the heart |
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Opening snaps |
Abnormal diastolic sound generated during opening of a rigid AV valve leaflet |
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Orthostatic Hypotension |
A significant drop in BP after an upright posture is assumed |
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Preload |
Degree of stretch of the cardiac muscle fibers at the end of diastole. |
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Pulmonary Vascular Resistence |
Resistance to right ventricular ejection of blood |
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Repolarization |
Return of the cell to resting state, caused by reentry of potassium into the cell while sodium exits the cell |
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S1 |
1st heart sound produced by closure of the atrioventricular valves |
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S2 |
2nd heart sounds produced by closure of the semilunar valves |
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SA Node |
Primary pacemaker of the heart, located in the right atrium |
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Stroke Volume |
Amount of blood ejected from the ventricle per heartbeat |
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Systemic Vascular Resistance |
Resistance to left ventricle ejection |
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Systole |
Period of ventricular contraction resulting in ejection of blood from the ventricles into the pulmonary artery and aorta |
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Telemetry |
The process of continuous electrocardiographic monitoring by the transmission of radio waves from a battery-operated transmitter worn by the patient |
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Systolic click |
Abnormal systolic sounds created by the opening of a calcified aortic or pulmonic valve during ventricular contraction |
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Common S&S of CVD |
Chest pain, SOB, Edema, Weight gain, Abdominal distention, palpitations, Vital fatigue, dizziness, syncope, changes in LOC |
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Pallor |
Caused by lack of oxyhemoglobin, it is a result of anemia or decreased arterial perfusion |
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Peripheral cyanosis |
Suggests decreased blood flow to a particular area (nails, skin of nose, lips, earlobes, extremities) |
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Central cyanosis |
Suggests serious cardiac disorders in which venous bloods passed through the pulmonary circulation without being oxygenated (tongue, buccal mucosa) |
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Ecchymosis |
Bruise-may indicate prolonged clotting time, reduced platelet function |
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Cool/cold and moist skin |
Cardiogenic shock causes vasoconstriction and skin becomes cool and clammy |
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Pulse pressure |
Difference between systolic and diastolic pressures (Usually 30-40 mmHg) |
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Decreased pulse pressure |
Reflects reduced stroke volume and ejection velocity or obstruction to blood flow during systole |
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JVP (Jugular Vein Pulsations) |
Indicates an abnormal increase in the volume of the venous system. (Right ventricular failure, pulmonary HTN, pulmonary stenosis) |
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Erb's point |
3rd intercostal space to the left of the sternum |
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Aortic area |
2nd intercostal space to the right of the sternum |
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Pulmonic area |
2nd intercostal space to the left of the sternum |
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S3 |
Occurs early in diastole during the period of rapid ventricular filling |
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S4 |
Occurs late in diastole-generated during atrial contraction as blood forcefully enters a noncompliant ventricle |
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LDL's |
<160 mg/dL Primary transporters of cholesterol and triglycerides into the cell (LETHAL) |
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HDL's |
35-70 mg/dL-Men 35-85 mg/dL-Women Transport cholesterol away from the tissue and cells of the arterial wall to the liver for excretion |
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Triglycerides |
100-200 mg/dL |
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Brain Natriuretic Peptide |
Neurohormone that helps regulate BP and fluid volume >100 pg/mL is suggestive of HF |
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ECG |
Graphic representation of the electrical currents of the heart 12, 15, 18-Leads |
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Potassium |
3.5-5.0 mEq/L |
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Sodium |
135-145 mEq/L |
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Calcium |
8.6-10.2 mg/dL
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Magnesium |
1.3-2.3 mEq/L Low Mg predispose patients to atrial and ventricular tachycardias |
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BUN |
10-20 mg/dL Reduced renal perfusion and decreased cardiac output |
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Creatinine |
0.7-1.4 mg/dL Renal impairment |
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INR |
1.0 (2-3 therapeutic level) Monitor effectiveness of Warfarin |
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Prothrombin Time |
9.5-12 seconds Monitors level of anticoagulation with Warfarin |
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Hematocrit |
35-47%-Women 42-52%- Men Percentage of RBC in 100 mL of whole blood |
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Hgb |
12-16 g/dL- Women 13-18 g/dL- Men Transports oxygen to the cells |
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Stress test helps determine....(6 things) |
1.CAD 2.cause of chest pain 3.functional capacity after MI or heart surgery 4. effectiveness of antianginal/antiarrhythmic medications 5.dysrhythmias that occur during physical activity 6.specific goals for a physical fitness program |
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MAP |
=[(2 x diastolic)] + systolic] / 3 |
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Ablation |
Purposeful destruction of heart muscle cells, usually in an attempt to control a dysrhythmia |
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Antiarrhythmic medication |
Medication the suppresses or prevents a dysrhythmia. |
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Automaticity |
Ability of the cardiac cells to initiate an electrical impulse |
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Cardioversion |
Electrical current administered in synchrony with the patients own QRS complex to stop a dysrhythmia |
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Conduction |
Transmission of electrical impulses from one cell to another |
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Defibrillation |
Electrical curren administered to stop a dysrhythmia, not synchronized with the patients QRS |
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Depolarization |
Process by which cardiac muscle cells change from a more negatively charged to a more positively charged intracellular state |
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Dromotropy |
Conduction velocity |
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Inhibited |
In reference to pacemakers, term used to describe the pacemaker withholding and impulse |
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Inotropy |
Force of myocardial contraction |
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P wave |
The part of an ECG that reflects conduction of an electrical impulse through the atrium; atrial depolarization |
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Paroxysmal Dysrhythmia |
Sudden onset and/or termination and is usually of short duration |
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PR Interval |
Reflects conduction of an electrical impulse from the sinoatrial node through the atrioventricular node |
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QRS complex |
Reflects the conduction of an electrical impulse through the ventricles; ventricular depolarization |
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QT Interval |
Reflects the time from ventricular depolarization through repolarization |
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Repolarization |
Process by which cardiac muscle cells return to a more negatively charged intracellular condition, their resting state |
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Sensitivity |
The level that the intracardiac electrical activity must exceed in order to be sensed by a pacemaker |
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Sinus Rhythm |
Electrical activity of the heart initiated by the SA node |
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ST segment |
Reflects the end of the QRS complex to the beginning of the T wave |
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Supraventricular Tachycardia |
A Rhythm that originates in the conduction system above the ventricles |
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T wave |
Reflects depolarizations of the ventricles |
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TP Interval |
Reflects the time between the end of the T wave and beginning of the next P wave |
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Triggered |
In reference to pacemakers, describes the release of an impulse in response to some stimulus |
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Ventricular Tachycardia |
A Rhythm that originates in the ventricles |
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Acute coronary syndrome (ACS) |
signs and symptoms that indicate unstable angina or acute myocardial infarction |
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Angina pectoris |
Chest pain brought about by myocardial ischemia |
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Atheroma |
fibrous cap composed of smooth muscle cells that forms over lipid deposits within arterial vessels and protrudes into the lumen of the vessel, narrowing the lumen and obstructing blood flow; also called plaque |
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Atherosclerosis |
Abnormal accumulation of lipid deposits and fibrous tissue within arterial walls and the lumen |
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Contractility |
Ability of the cardiac muscle to shorten in response to an electrical impulse |
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Coronary artery bypass graft (CABG) |
A surgical procedure in which a blood vessel from another part of the body is grafted onto the occluded coronary artery below the occlusion in such a way that blood flow bypasses the blockage |
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Creatine kinase (CK) |
An enzyme found in human tissues; one of the three types of CK is specific to heart muscle and may be used as an indicator of heart muscle injury
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HDL |
A protein-bound lipid that transports cholesterol to the liver for excretion in the bile; composed of a higher proportion of protein to lipid than LDL; exerts beneficial effect on the arterial wall |
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Ischemia |
Insufficient tissue oxygenation |
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LDL |
A protein-bound lipid that transports cholesterol to tissues in the body; composed of a lower proportion of protein to lipid than HDL; exerts a harmful effect on the arterial wall |
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Metabolic Syndrome |
A cluster of metabolic abnormalities including insulin resistance, obesity, dyslipidemia, and hypertension that increase the risk of cardiovascular disease |
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Myocardial infarction |
Death of heart tissue caused by lack of oxygenated blood flow |
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Percutaneous Coronary Intervention (PCI) |
An invasive procedure in which a catheter is placed in a coronary artery, and one of several methods is employed to remove or reduce a blockage within the artery |
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Percutaneous Transluminal Coronary Angioplasty (PTCA) |
A type of percutaneous coronary intervention in which a balloon is inflated within a coronary artery to break an atheroma and open the vessel lumen, improving coronary artery blood flow |
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Stent |
A woven mesh that provides structural support to a coronary vessel, preventing its closure |
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Sudden cardiac death |
Abrupt cessation of effective heart activity |
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Thrombolytic |
An agent or process that breaks down blood clots |
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Troponin |
Myocardial protein; measurement is used to assess heart muscle injury. |
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Allograft |
Heart valve replacement made from a human heart valve |
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Annuloplasty |
Repair of a cardiac valve's outer ring |
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Autograft |
Heart valve replacement made from the patients own heart valve |
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Cardiomyopathy |
Disease of the heart muscle |
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Chordae Tendineae |
Nondistensible fibrous strands connecting papillary muscles to atrioventricular (mitral, tricuspid) valve leaflets |
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Chordoplasty |
Repair of the chord tendineae |
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Commissurotomy |
Splitting or separating fused cardiac valve leaflets |
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Heterograft |
Heart valve replacement made of tissue from an animal heart valve |
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Homograft |
Heart valve replacement made from a human heart valve |
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Leaflet repair |
Repair of a cardiac valve's moveable flaps |
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mitral valve |
atrioventricular valve located between the left atrium and left ventricle |
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Orthotopic transplantation |
The recipient's heart is removed and a donor heart is grafted into the same site; the patient has one heart |
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Prolapse (of a valve) |
Stretching of an atrioventricular heart valve leaflet into the atrium during systole |
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Pulmonic Valve |
Semilunar valve located between the right ventricle and the pulmonary artery |
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Regurgitation |
Backward flow of blood through a heart valve |
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Stenosis |
Narrowing or obstruction of a cardiac valve's orifice |
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Total artifical heart |
Mechanical divide used to aid a failing heart, assisting the right and left ventricles |
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Tricuspid valve |
Atrioventricular valve located between the right atrium and right ventricle |
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Valve replacement |
insertion of a device at the site of a malfunctioning heart valve to restore blood flow in one direction through the heart |
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Valvuloplasty |
Repair of a stenosed or regurgitant cardiac valve by commissurotomy, annuloplasty, leaflet repair, or chordoplasty |
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Ventricular Assist Device |
Mechanical device used to aid a failing right or left ventricle |
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Xenograft |
Heart valve replacement made of tissue from an animal heart valve |
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Acute decompensated heart failure |
Acute exacerbation of heart failure, with signs and symptoms resulting in markedly lower systemic perfusion |
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Anuria |
Urine output of less than 50 mL/24 hr |
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Ascites |
An accumulation of serous fluid in the peritoneal cavity |
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Cardiac resynchronization therapy (CRT) |
A treatment for heart failure in which a divide paces both ventricles to synchronize contractions |
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Compliance |
The elasticity or amount of "give" when blood enters the ventricle |
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Congestive Heart Failure |
A fluid overload condition associated with heart failure |
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Contractility |
The force of ventricular contraction; related to the number and state of myocardial cells |
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Diastolic Heart Failure |
The inability of the heart to pump sufficiently because of an alteration in the ability of the heart to fill. |
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Ejection Fraction |
% of blood volume in the ventricles at the end of diastole that is ejected during systole; a measurement of contractility |
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Heart Failure |
The inability of the heart to pump sufficient blood to meet the needs of the tissues for oxygen and nutrients |
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Left-sided heart failure |
Inability of the left ventricle to fill or pump sufficient blood to meet the needs of the tissues for oxygen and nutrients; traditional term to describe patient's symptoms of heart failure |
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Oliguria |
Diminished urine output; less than 500 mL/24 hr |
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Orthopnea |
Shortness of breath when laying flat |
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Paroxysmal norcturnal dyspnea |
Shortness of breath that occurs suddenly during sleep |
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Pericardiocentesis |
Procedure that involves aspiration of fluid from the pericardial sac |
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Pericardiotomy |
Surgically created opening of the pericardium |
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Pulmonary Edema |
Abnormal accumulation of fluid in the interstitial spaces and alveoli of the lungs |
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Pulseless electrical activity (PEA) |
Condition in which electrical activity is present but there is not an adequate pulse or blood pressure |
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Pulsus Paradoxus |
Systolic blood pressure that is more than 10 mmHG higher during exhalation than during inspiration; difference is normally less than 10 mmHg |
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Right sided Heart Failure |
Inability of the right ventricle to fill or pump empty sufficient blood to the pulmonary circulation |
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Stroke volume |
Amount of blood pumped out of the ventricle with each contraction |
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Systolic Heart Failure |
Inability of the heart to pump sufficiently because of an alteration in the ability of the heart to contract |