In a Heart Beat

Robert vanOostwaard

Dawn MacIsaac

Adrian Chan

Brigitte Boudreau

OVERVIEWOVERVIEW

Cardiac Physiology

Electrocardiography

Diagnosing Heart Conditions

Cardiac Physiology Electrocardiography Diagnosis

ARTERIESdistributes blood from

heart

VEINSbrings blood back to heart

Cardiac Physiology Electrocardiography Diagnosis

Atria

Ventricles

Cardiac Physiology Electrocardiography Diagnosis

Sinoatrial Node

Atrioventricular Node

Cardiac Physiology Electrocardiography Diagnosis

Cardiac Physiology Electrocardiography Diagnosis

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Cardiac Physiology Electrocardiography Diagnosis

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Cardiac Physiology Electrocardiography Diagnosis

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0.5 Sec

1 sec

Cardiac Physiology Electrocardiography Diagnosis

Atrioventricular Block

• Ischemia

• Nodal Compression

• Nodal Inflamation

• Extreme Stimulation

Cardiac Physiology Electrocardiography Diagnosis

ECG with Atrioventricular Block

Normal ECG

Cardiac Physiology Electrocardiography Diagnosis

Preventricular Contractions

• Coffee

• Cigarettes

• Sleep deprivation

• Pathology

Cardiac Physiology Electrocardiography Diagnosis

ECG with Preventricular Contractions

Normal ECG

Cardiac Physiology Electrocardiography Diagnosis

Ventricular Fibrilation

• Ischemia

• Electric Shock

Cardiac Physiology Electrocardiography Diagnosis

ECG during Ventricular Fibrillation

Normal ECG