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Understanding the Cardiovascular System Study Guide

Learn about the heart's structure and function, how electrical signals control its rhythm, common cardiovascular diseases, and how healthcare professionals assess heart health through physical exams and EKGs.

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Your learning path

Pathophysiology and Management of Cardiovascular Emergencies

Acute Coronary Syndromes and Cardiology

This lecture covers Acute Coronary Syndromes including angina pectoris and acute myocardial infarction, focusing on pathophysiology, assessment, and treatment plans.

Acute Coronary Syndromes (ACS)
Angina pectoris
Unstable angina
Acute Myocardial Infarction (AMI)
NSTEMI
Atherosclerosis
Infarction
Percutaneous coronary intervention (PCI)
Fibrinolytic medication
Reperfusion therapy

Cardiology: Heart Failure and Acute Syndromes

This lecture covers heart failure pathophysiology, compensatory mechanisms, assessment, treatment plans, and ventricular assist devices.

Acute Coronary Syndromes
Heart Failure
Left Ventricular Failure
Right Ventricular Failure
Cor Pulmonale
Compensatory Mechanisms
Sympathetic Nervous System
Ventricular Assist Devices
Cardiac Tamponade

Cardiac Tamponade and Cardiogenic Shock

This content covers the signs, symptoms, pathophysiology, assessment, and treatment plans for cardiac tamponade and cardiac shock.

Cardiac Tamponade
Pulsus paradoxus
Electrical alternans
Cardiac Shock
Myocardial contractility
Tissue perfusion
Left Ventricular Failure (LVF)
Acute Myocardial Infarction (AMI)
Vasoactive IV medications
Dopamine
Norepinephrine
Epinephrine

Cardiology Emergencies and Cardiac Inflammatory Conditions

This lecture covers hypertensive emergencies, endocarditis, pericarditis, and myocarditis including pathophysiology, signs and symptoms, assessment, and treatment plans.

Hypertensive emergencies
Hypertensive urgency
Endocarditis
Pericarditis
Myocarditis
End-organ damage
Atherosclerosis
Arteriosclerosis
Cardiac shock
Neurologic signs and symptoms
Cardiovascular signs and symptoms
Inflammation of the pericardium
Inflammation of the myocardium
Infection of the endocardium

Cardiology: Myocarditis, Rheumatic Fever, and Aortic Aneurysm

This lecture covers myocarditis, rheumatic fever, and aortic aneurysm including assessment, signs and symptoms, and prehospital care.

Myocarditis
Rheumatic Fever
Aortic Aneurysm
Aortic Dissection
Tachypnea
Arrhythmia
Heart Failure
EKG abnormalities
Streptococcal bacteria
Valve stenosis
Ascending aorta dissection
Descending aorta dissection
Prehospital care

Arterial Occlusion and Limb Ischemia

Arterial occlusion and acute limb ischemia involve sudden disruption of arterial blood flow caused by thrombus, embolus, tumor, or direct trauma.

Arterial occlusion
Limb ischemia
Thrombus
Embolus
Acute limb ischemia
Five Ps assessment
Thrombophlebitis
Deep vein thrombosis (DVT)
Venous stasis
Homan sign
Pulmonary embolism (PE)

Cardiac Pathophysiology and Emergencies

This material covers cardiac pathophysiology including coronary artery disease, angina, myocardial infarction, heart failure, cardiac tamponade, cardiogenic shock, dissecting aortic aneurysm, and hypertensive emergencies.

Coronary Artery Disease
Thrombus
Embolus
Atherosclerosis
Arteriosclerosis
Myocardial Infarction
NSTEMI
Subendocardial MI
Transmural MI
Left Sided Heart Failure
Right Sided Heart Failure
Cardiac Tamponade
Cardiogenic Shock
Dissecting Aortic Aneurysm
Hypertensive Emergencies
Hypertensive Crisis
Hypertensive Encephalopathy

ACLS Rhythms and Cardiac Medications

Advanced Cardiac Life Support guidelines for interpreting cardiac rhythms and administering specific cardiac medications.

EKG interpretation
Junctional Escape
Second Degree Type 1
Second Degree Type 2
Third Degree Idioventricular
Sinus Rhythm
Sinus Tachycardia
Atrial Fibrillation
Accelerated Junctional
Junctional Tachycardia
Supraventricular Tachycardia
Ventricular Tachycardia
Asystole
Ventricular Fibrillation
Pulseless Ventricular Tachycardia
Adenosine
Amiodarone
Atropine
Dopamine

Management of Cardiovascular Emergencies

An overview of cardiovascular anatomy, physiology, and the assessment and management of various cardiac conditions and dysrhythmias.

cardiovascular anatomy and physiology
cardiac conduction system
cardiac action potential
acute coronary syndrome
myocardial infarction
angina pectoris
cardiac arrest
cardiac dysrhythmias
ECG monitoring
heart failure
cardiac tamponade
cardiogenic shock
hypertensive emergencies
vascular disorders
aortic aneurysm
acute arterial occlusion
defibrillation
synchronized cardioversion
transcutaneous pacing

Management of Adult Cardiac Arrest

Emergency medical care for patients in cardiac arrest involves high-quality CPR, defibrillation for VF or pulseless VT, and management of asystole or PEA.

Ventricular fibrillation
Pulseless ventricular tachycardia
Asystole
Pulseless electrical activity
Defibrillation
Automated external defibrillator
High-quality CPR
Return of spontaneous circulation
Chest compressions
Ventilation
Epinephrine administration
Intraosseous access
Refractory VF/VT
Post-cardiac arrest care

Pathophysiology and Management of Cardiovascular Conditions

This content covers the pathophysiology, assessment, and management of acute coronary syndromes, myocardial infarction, and heart failure.

Brugada syndrome
Long QT syndrome
Acute coronary syndromes
Atherosclerosis
Unstable angina
Microvascular angina
Acute myocardial infarction
NSTEMI
Reperfusion therapy
Fibrinolytic therapy
Percutaneous coronary intervention
Left ventricular failure
Right ventricular failure
Cor pulmonale
Cardiogenic shock
Compensatory mechanisms

Emergency Management of Cardiovascular Conditions

This document outlines the assessment, pathophysiology, and management of various cardiovascular emergencies including ventricular assist devices, cardiac tamponade, cardiogenic shock, hypertensive emergencies, infectious diseases of the heart, aortic dissection, and acute arterial occlusion.

Ventricular assist devices (VADs)
Cardiac tamponade
Pericardiocentesis
Cardiogenic shock
Hypertensive emergency
Hypertensive urgency
Endocarditis
Pericarditis
Myocarditis
Rheumatic fever
Aortic aneurysm
Aortic dissection
Acute arterial occlusion
Acute limb ischemia
Five Ps of acute arterial occlusion
Deep vein thrombosis (DVT)
Thrombophlebitis

Cardiac Anatomy, Physiology, and Electrophysiology

Cardiovascular Anatomy and Clinical Assessment

An introduction to cardiovascular disease, heart anatomy, and clinical assessment techniques for cardiac patients.

Cardiovascular disease
Coronary heart disease
Myocardial infarction
Cardiac arrest
Heart chambers
Myocardium
Coronary arteries
Cardiac cell properties
Cardiac conduction system
Sympathetic and parasympathetic nerve stimulation
Acute coronary syndromes
Primary survey ABCDE
Physical examination findings
Pulse deficit
Blood pressure findings

Cardiology Heart Sounds and Conduction

This lecture covers heart sounds, cardiac action potential, the conduction system, and autonomic nervous system effects on the heart.

Heart sounds (S1, S2, S3, S4)
Depolarization and repolarization
Cardiac action potential phases
Conduction system (SA-node, AV-node, Bundle of His, Purkinje fibers)
Accessory conduction pathways
Sympathetic and parasympathetic nervous system
Baroreceptors and chemoreceptors

Cardiac Anatomy, Physiology, and Electrophysiology

This material covers cardiac anatomy, physiology, and electrophysiology including blood flow, coronary circulation, and the autonomic nervous system.

Ejection Fraction
Stroke Volume
Cardiac Output
Cardiac Anatomy
Heart Layers
Pericardium
Blood Flow Through the Heart
Coronary Circulation
Collateral Circulation
Peripheral Circulation
Diastole
Cardiac Axis
Autonomic Nervous System
Sympathetic Nervous System
Parasympathetic Nervous System
Cardiac Electrolytes
Electrophysiology
Cardiac Conduction

Cardiac Assessment and Myocardial Electrophysiology

This content covers secondary assessment of cardiac complaints, physical exam findings, heart sounds, and the phases of the cardiac action potential.

Secondary assessment
Jugular venous pressure
Pulsus paradoxus
Pulsus alternans
Hypertension
Hypotension
Depolarization
Repolarization
Cardiac action potential
Phase 0 to phase 4
Sodium-potassium pump

Cardiac Conduction and Autonomic Regulation

This text details the electrical activity of the heart, including phases of repolarization, the conduction system, and the influence of the autonomic nervous system.

Phase 3 repolarization
Phase 4 resting membrane potential
Absolute and relative refractory periods
SA node and AV node
Internodal pathways
Bundle of His and bundle branches
Purkinje fibers
Accessory conduction pathways
Sympathetic and parasympathetic nervous systems
Norepinephrine and acetylcholine
Vagus nerve
Baroreceptors and chemoreceptors
Electrocardiogram (ECG) leads

EKG Interpretation and Cardiac Rhythm Management

Arrhythmia Interpretation and Classification Methods

Methods for arrhythmia interpretation include identifying P-QRS-T waves, measuring PRI and QRS duration, determining rhythm regularity, and calculating heart rate.

Arrhythmia interpretation method
Rhythm regularity
6-second method
Sequence method
1,500 method
Arrhythmia classifications
Normal Sinus Rhythm (NSR)

EKG Interpretation and Monitoring Fundamentals

A guide to EKG interpretation covering electrical activity, lead types, paper measurements, and the five step process for analyzing rhythm.

EKG interpretation
4 lead EKG
12 lead EKG
Telemetry
EKG paper measurements
Bipolar leads
Augmented leads
Precordial leads
P-wave
PR interval
QRS complex
T-wave
QT interval
Refractory period
Rate calculation methods
Rhythm regularity
Ectopic beats

EKG Interpretation of Cardiac Rhythms

This text details the rate, rhythm, P-wave, PRI, and QRS characteristics, etiology, and clinical significance of various sinus, atrial, junctional, heart block, and ventricular rhythms.

Normal Sinus Rhythm
Sinus Tachycardia
Sinus Dysrhythmia
Sinus Arrest
Wandering Pacemaker
Premature Atrial Complex
Supraventricular Tachycardia
Atrial Fibrillation
Premature Junctional Complex
Junctional Escape Rhythm
Accelerated Junctional Rhythm
Junctional Tachycardia
Third Degree Complete Heart Block
Second Degree Type II
Premature Ventricular Contraction
Idioventricular Ventricular Escape Rhythm
Polymorphic Ventricular Tachycardia

12-Lead EKG Interpretation and STEMI Identification

A guide to 12-lead EKG acquisition, interpretation methods, and identifying cardiac abnormalities, conduction system disturbances, bundle branch blocks, and ST-segment elevated myocardial infarction (STEMI) related to vessel occlusions.

12-lead EKG indications
Acquisition modes
Lead placement
Seven-step interpretation method
Arrhythmia interpretation
QRS axis and vector
Bundle branch blocks
Conduction system disturbances
Chamber size evaluation
Right ventricular hypertrophy
Left ventricular hypertrophy
Ischemia, injury, and infarction
ST-segment depression and elevation
Pathologic Q-waves
Benign early repolarization
Pericarditis
Pulmonary embolism
Hypothermia
Electrolyte imbalances
Hyperkalemia

Electrocardiogram Leads and Cardiac Monitoring

This material covers electrode placement principles, lead groups including limb and precordial leads, and the interpretation of ECG waveforms, segments, and intervals.

Cardiac Arrhythmia Causes
Electrocardiogram (EKG) limb leads
Precordial leads
Augmented limb leads
Einthoven’s theory
Electrode placement principles
12-lead EKG
15-lead and 18-lead EKG
EKG paper speed and amplitude
P-wave
PR-interval (PRI)
QRS-complex
J-point
ST-segment
T-wave
U-wave
QT-interval
TP-segment
R-R interval
electrode placement

ECG Waveform and Rhythm Interpretation

Lecture outlines covering ECG waveform components, interval measurements, and methods for determining heart rate and rhythm regularity.

P wave
PR interval
QRS complex
ventricular depolarization
Q wave
R wave
S wave
R-prime wave
J point
ST segment
T wave
ventricular repolarization
U wave
QT interval
TP segment
R-R interval
rhythm regularity
6-second method
sequence method
1,500 method

Clinical Management of Cardiac Rhythms and Arrest

This content covers the identification and treatment plans for sinus, atrial, junctional, and ventricular rhythms, alongside high-quality CPR and management for adult cardiac arrest.

Normal sinus rhythm
Sinus Tachycardia
Sinus Arrhythmia
Sinus Arrest
Sick Sinus Syndrome
Atrial Rhythms
Premature Atrial Contraction
Supraventricular Tachycardia
AV-Nodal Reentrant Tachycardia
Atrial fibrillation
Wandering Atrial Pacemaker (WAP)
Multifocal Atrial Tachycardia (MAT)
Junctional rhythms
Premature Junctional Contraction (PJC)
Junctional Escape Rhythm (JER)
Accelerated Junctional Rhythm (AJR)
Junctional Tachycardia (JT)
Ventricular rhythms
Premature Ventricular Contraction (PVC)
Ventricular Tachycardia (VT)

Atrioventricular Blocks and 12-Lead ECG Interpretation

This content covers atrioventricular blocks, artificial pacemaker rhythms, and the seven-step method for 12-lead ECG interpretation.

Second-degree AV block type I
Artificial pacemaker rhythms
Pacemaker failure modes
12-lead ECG acquisition modes
QRS axis and deviation
Bundle branch blocks
Fascicular blocks
Chamber size abnormalities
Ischemia, injury, and infarction
Reciprocal changes
Noncardiac causes of ECG abnormalities
Electrolyte imbalances
Cardiomyopathy

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