Category 1
Category 2
Category 3
Category 4
Category 5
100

to turn upside down or inside out

inverted

100

Slow

brady-

100

Fast

tachy-

100

Above

supra-

100

rhythmic beating

pulsation

200

any abnormal rhythm of a heartbeat

arrhythmia

200

between the ribs

intercostal

200

a complete heartbeat

cardiac cycle

200

involuntary movement resulting in quivering

tremor

200

adhesive pads used to conduct electricity

electrode

300

occurring before the normal onset

premature

300

a group of waveforms

complex

300

to enhance for the purpose of increasing function,
size, or strength

augmented

300

turning away from the baseline

deflection

300

any distortion of an EKG tracing

artifact

400

individual component of the cardiac cycle

waveform

400

each individual waveform displayed; a connection
used to record electrical activity

lead

400

shape and appearance of a waveform

configuration

400

electrical event expected to result in contraction

depolarization

400

the graphical representation of the electrical
activity of the heart

electrocardiograph

500

when a lower site spontaneously produces
electrical impulses, acting as the pacemaker

escape beats

500

no electrical activity, observed as a straight line

isoelectric

500

the time required for an electrical impulse to be
received and conducted to an adjacent cell

conduction

500

the amount of time needed for cells to recover
before they are able to respond to stimuli

refractory period

500

strength of a heartbeat measured in millivolts (mV)

amplitude

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