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Depolarization
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Repolarization
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CH 5 EKG

QuestionAnswer
Depolarization Change in electrical charge from neg to a pos
Repolarization Change in electrical charge from pos to neg
Cardiac conduction Movement of the electrical signs in the heart
Electrodes Pads that conduct electricity
Leads Test that records the electrical activity of the heart
Mechanical activity Muscle contractions of the heart
Electrocardiogram (EKG) Views of the heart electrical activity recorded on an ekg
Echocardiogram Test that shows the mechanical activity of the heart
How many lead wires does a long cable have? 10
What are flat electrodes called? Resting electrodes
Circular pad electrodes are called? Monitoring electrodes
What ekg testing monitor is for pt that doesn't show any abnormalities but the dr would like to have info about the cardiac activity over a long period? Event monitor
Hospitalized overnight for observation after a heart attack? Holter monitor
Having shortness of breathe and experienced palpations but during exercise only Stress test
EKG needed during routine physical with PCP Telemetry
Another name for limb leads are? Bipolar
What leads are called the augmented leads? aVR, aVL, aVF
What leads are precordial leads or chest leads V1, V2, V3, V4, V5, V6
Which limb leads are unipolar leads? Augmented and precordial leads
What are limb leads called? Lead I, II, & III
What do limb leads electrodes form? which is known as? Einthoven's Tringale
What is a common known mistake during EKGs? Reversal of limb leads
Where are the electrodes placed in a 3 lead and 5 lead ? Chest and lower torso
Where are the electrodes placed in a 12 lead EKG? Limb or torso
How many electrodes does a 12 lead uses? 10
Where is the placement for RA electrode right or upper torso, just under right clavicle at the right midclavicular line
Where is the placement for RL electrode Right leg or right lower torso
Where is the placement for LA electrode Left arm or left upper torso, just under left clavicle at the left midclavicular line
Where is the placement for LL electrode Left leg or left torso
Where is the placement for V1 electrode In the 4th intercostal space (between ribs 4 & 5) just to the RIGHT of the sternum (breastbone)
Where is the placement for V2 electrode In the 4th intercostal space (between ribs 4 & 5) just to the LEFT of the sternum (breastbone)
Where is the placement for V3 electrode Between the electrodes for V2 & V4
Where is the placement for V4 electrode In the 5th intercostal space (between ribs 5&6) in the left of the midclavicular line
Where is the placement for V5 electrode Horizontally even with V4 in the left of the anterior axillary line
Where is the placement for V6 electrode Horizontally even with V4 & V5 in the left midaxillary line
Where should an EKG machine be placed during testing? On the left side of the patient
What is the default paper speed on an ekg machine? 25mm
Why might a provider request that an EKG be run a bit faster paperspeed? Routine testing
What does gain mean? Measurement of how high or low the stylus is
At default speed and default gain, what should be the measurements of an EKG Calibration mark be? 5mm wide by 10 mm tall
Voltage Difference in electrical charge
Monitoring electrodes Circular pads are used when resting and for continuous monitoring (If diaphoresis can not be attached)
Telemetry An application of EKG technology that allows continual monitoring of a patients heart rate & rhythm
Ambulatory monitoring A type of EKG technology that can record or monitor patient heart rate & rhythm over an extended period while the pt continues with normal life
Holter monitor a type of ambulatory monitor that allows dr to evaluate heart rate & rhythm over an extended period of time (usually 24-48hrs while the pt continues with normal life)
Event monitor A type of ambulatory monitor that records heart rate & rhythm when pt indicates that there expecting symptoms
Mobile cardiac telemetry Ambulatory monitoring that automatically alerts a healthcare professional if the irregularities in the heart or rhythm are detected
Heart Cards Home monitor and they do not involve placement of electrodes and lead wires.
Stress test How the heart response to physical activity on treadmill or bicycle
Tracings Recorded in sequence, switching from one lead to the next lead every 2.5 sec
Rhythm strip This test records the electrical activity of the heart.
Known Limp leads are Lead I, II, III
Lead I measures? Measures the left arm electrode (pos pole) & right (neg pole)
Lead II measures? Measures the left leg (pos) & right arm (neg)
Lead III Measures the left leg (pos) & left arm (neg)
Neutral Without pos or neg electrical charge
What leads give info about the inferior or lower wall of the heart (left ventricle) Leads I, II, III and aVF
What leads give info about the anteroseptal wall of the heart? Leads V1 V2 V3 & V4
What leads give info about the lateral wall of the heart? Leads I aVL, V5 & V6
Anteroseptal wall Front part of the wall that divides the right and left sides of the heart
Placement of 5 lead testing are? On the right arm and left arm and left leg electrodes are placed in a 3 lead testing
What is another word for electrode? Ground electrode
How many precordial leads are there? & where? 4 limb locations and 6 chest locations
Gain control Used to change sensitivity of machine
Stylus The part of the machine that marks on the paper
Created by: user-1807520
 

 



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