Key Terms

Question 1

ECG/EKG

Answer 1

Electrocardiogram

Question 2

SA Node

Answer 2

Sinoatrial Node

Question 3

AV Node

Answer 3

Atrioventricular Node

Question 4

Ac Interference

Answer 4

Artifact on an ECG tracing caused by electrical interference example/ cellphone

Question 5

P Wave

Answer 5

Represents atrial depolarization

Question 6

PR Interval

Answer 6

represents the time it takes for the electrical impulse to travel from the SA Node to the AV Node. Normal range for a QRS complex is 0.12 to 0.20secs

Question 7

QRS

Answer 7

representative of ventricular depolarization normal range for a QRS complex is 0.06 – 0.10 secs

Question 8

QT Interval

Answer 8

the time from the beginning of the QRS complex, representing ventricular depolarization, to the end of the T Wave normal range 0.4 - 0.44 secs

Question 9

T wave

Answer 9

represents ventricular repolarization

Question 10

Artifact

Answer 10

Anything artificially rhythm of heart beat

Question 11

Asystole

Answer 11

Absence of heartbeat (cardiac arrest)

Question 12

Atrial Tachycardia

Answer 12

rapid heart rate, causing the P Wave to be unidentifiable or hidden in the the previous T Wave.

Question 13

Baseline

Answer 13

Initial measurement for future comparing

Question 14

Bradycardia

Answer 14

Slow heart rate, less than 60 BPM

Question 15

Bundle of His

Answer 15

part of the electrical system of the heart, it transmits impulse from there Av Node to the ventricles of the heart

Question 16

Diastole

Answer 16

Relaxation of the heart

Question 17

Precordial

Answer 17

pertaining to the precordium, refers to the chest leads placed on the patient for ECG testing

Question 18

Purkinje fibers

Answer 18

are networks of fibers that receive conductive signals originating at the AV Node and simultaneously activate the left and right ventricles by directly stimulating the ventricular myocardium

Question 19

Sinus Rhythm

Answer 19

Any Cardiac Rhythm in which depolarization of the cardiac muscle begins at the sinus node

Question 20

Normal Sinus Rhythm

Answer 20

Regular rate (60-100 bpm) and rhythm seen on the ECG

Question 21

Arrhythmia

Answer 21

Abnormal rhythm of heartbeat

Question 22

Polarization

Answer 22

cardiac cells in a resting, negatively charged state

Question 23

Somatic Tremor

Answer 23

Interference/Artifact throughout the ECG tracing, often caused by patient movement or shivering

Question 24

Systole

Answer 24

The Contraction of the heart

Question 25

Tachycardia

Answer 25

Fast heart rate greater than 100 bpm

Question 26

Wandering Baseline

Answer 26

artifact on an ECG commonly caused by loose electrodes