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Worksheet 24

QuestionAnswer
The basic rhythm of the heart is called sinus rhythm
The SA node beats at an average rate of 72 BPM (beats per minute)
A small battery-powered device that can help control a patient's heartbeat pacemaker
Purkinje fibers cause the heart to do what from the bottom up and not top down contract
The electrocardiograph machine amplifies the signals obtained by the various ? and prints out patterns a s an electrocardiogram electrodes
The ECG shows us the electrical signal that instructs the heart to beat and reveals the how well that signal travels through the heart
During the time reflected in the QRS complex the electrical impulse is moving through the ventricles
Cardiac output is the product of two things: the heart rate (HR) and the ? volume (SV) stroke
An electrocardiogram uses ? waves to see inside the heart sound
The heart's ? fraction, a valuable way to assess how well it is pumping, can be calculated based on information from the echocardiogram. ejection
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