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WorksheetsCardiac Electrical Activity and EKG Leads
Total questions: 31
Worksheet time: 24mins
Default gain setting
10mm/mV
50mm/s
25mm/s
10mm/s
The multichannel EKG machine is a recorder that monitors
10 leads
12 leads
12 & 5 leads
5 leads
Cardiac Cycle in terms of electricity
polarization--> depolarization--> repolarization
repolarization--> depolarization--> polarization
repolarization--> depolarization--> repolarization
depolarization--> repolarization--> depolarization
Precordial leads are?
Leads I, II, III
aVR, aVL, aVF
V1, V2, V3, V4, V5, V6
a)_ are pads that conduct electricity while (b)_ gives views of the heart's electrical activity recorded on an ECG.
a) Electrodes
a) Stickers
b) Wires
b) Leads
Continuous EKG monitoring in a healthcare setting is
12 lead EKG
3 lead EKG
Holter Monitor
10 lead EKG
Ordered before a procedure to make sure the pt can survive the procedure
3 lead EKG
5 lead EKG
12 Lead EKG
Holter Monitor
This device allows the doctor to evaluate 24-48 hours of the pts heart rhythms.
3 lead EKG
5 lead EKG
12 lead EKG
Holter Monitor
Occurs when the electrical system of the heart stimulates a myocardial cell (causes a contraction)
polarization
depolarization
repolarization
popularization
The process of the heart muscle cells returning to a resting state.
polarization
depolarization
repolarization
popularization
Only EKG that you use the phrase "everyone loves chocolate" to put the brown electrode to the right of the sternum
3 lead EKG
5 lead EKG
12 lead EKG
Holter monitor
Which EKG has precoridal leads?
3 lead EKG
5 lead EKG
12 lead EKG
Holter monitor
When a pt has dextrocardia the PCT needs to do what different when performing a 12 lead EKG?
move V4 to the right side
place the chest leads on the right
move V4, V5, and V6 to the right posterior side
place the chest leads on the left
. The augmented limb leads are
A) A1, A2, and A3
(B) V1, V2, V3, V4, V5, and V6
(C) aI, aII, and aIII
(D) aVR, aVL, and aVF
What feature of electrodes allows electrical signals to be transmitted from the pad to the lead wire?
(A) The shape of the pad
(B) A conductive gel in the pad
(C) The adhesive on the pad
(D) The paper backing on the pad
Where are the three leads for continuous monitoring usually placed?
(A) Right upper torso, left upper torso, and right lower torso
(B) Right upper torso, left upper torso, and left lower torso
(C) Right lower torso, left lower torso, and left upper leg
(D) Right upper leg, left upper leg, and right lower torso
How many electrodes are required for a 12-lead EKG test?
A) 5
(B) 8
(C) 10
(D) 12
Why should an EKG machine be placed near the patient?
(A) So the patient can see the readout on the screen
(B) To allow the patient to type in her name and other details
(C) Because the machine cannot read signals from farther away
(D) Because tension in the lead wires can distort the EKG tracing
When an EKG is set to default paper speed, how many one-millimeter blocks on the tracing represent one second of cardiac activity?
(A) 10
(B) 20
(C) 25
(D) 50
What is the effect of increasing the speed at which EKG paper passes through the machine?
(A) It makes the features on the tracing more densely packed together
(B) It makes the features on the tracing more spread out
(C) It makes the features on the tracing taller
(D) It makes the features on the tracing shorter.
Another name for Leads aVF, aVL, aVR is:
Stand lead.
Bipolar lead.
Both A and B.
Augmented leads.
What is an electrocardiogram?
An instrument used for recording an EKG.
The EKG paper that is used for recording an EKG.
The pen that is heat sensitive for tracing an EKG.
A recording or tracing of an EKG.
ECG is a reading that shows
the activity of heart
the electrical activity of cardiac muscle
the systole and diastole of cardiac muscle
the initiation of heartbeat
Standard limb leads are
V1-V3
Lead I, II, III
aVR, aVL, aVF
V4-V6
What is an electrocardioGRAM?
the machine that hooks up to the patient
a scan of the brain
the print out of electrical activity of the heart
an ultrasound of the heart
V1
LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space
LEFT side of the chest, FIFTH intercostal space, midclavicular line
RIGHT side of the sternum at the FOURTH intercostal space
LEFT side of the chest, FIFTH intercostal space, midaxillary line
V2
LEFT side of the chest, FIFTH intercostal space, midclavicular line
LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space
LEFT side of the chest, FIFTH intercostal space, midclavicular line
LEFT side of the chest, FIFTH intercostal space, anterior axillary line
V3
LEFT side of the chest, FIFTH intercostal space, midaxillary line
RIGHT side of the sternum at the FOURTH intercostal space
LEFT side of the chest, FIFTH intercostal space, anterior axillary line
LEFT side of the chest, midway between V2 and V4
V5
LEFT side of the chest, FIFTH intercostal space, anterior axillary line
LEFT side of the chest, FIFTH intercostal space, midaxillary line
LEFT side of the chest, FIFTH intercostal space, midclavicular line
LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space
V6
LEFT side of the chest, FIFTH intercostal space, midclavicular line
LEFT side of the chest, FIFTH intercostal space, anterior axillary line
LEFT side of the chest, FIFTH intercostal space, midaxillary line
LEFT side of the sternum, directly across from V1 at the FOURTH intercostal space
