Sinus node arrhythmias
Sinus node arrhythmias When the heart functions normally, the sinoatrial (SA) node (also called the sinus node), acts as the primary pacemaker. The sinus node assumes this role because its…
Rhythm strip interpretation
Rhythm strip interpretation An electrocardiogram (ECG) complex represents the electrical events occurring in one cardiac cycle. A complex consists of five waveforms labeled with the letters P, Q, R, S,…
ECG basics
ECG basics One of the most valuable diagnostic tools available, an electrocardiogram (ECG) records the heart’s electrical activity as waveforms. By interpreting these waveforms accurately, you can identify rhythm disturbances,…
Cardiovascular assessment
Cardiovascular assessment Performed correctly, cardiovascular assessment can help to identify and evaluate changes in the patient’s cardiac function. Complete cardiovascular assessment of a patient consists of obtaining an accurate, thorough…
Cardiac anatomy and physiology
Cardiac anatomy and physiology Knowing how to interpret an electrocardiogram (ECG) allows you to provide better patient care. For example, when caring for a patient with an arrhythmia or myocardial…
