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MED239 EKG

MED239 CH03

QuestionAnswer
MED239 CH03
The 12-lead ECG produces a complete picture of the heart’s electrical activity. TRUE/FALSE TRUE
The ECG utilizes ____ lead wires. A. 4 B. 6 C. 12 D. 10 D. 10
ECG produces __ different views. A. 12 B. 3 C. 6 D. 10 A. 12
This type of waveform is flat with no current flowing. A. positive B. neutral C. isoelectric D. negative C. isoelectric
Which limb leads are standard? A. Leads I and II B. Leads I,II, and III C. Leads V, II, and I D. Leads II and III B. Leads I,II, and III
Augmented leads include aVR,aVL, and aVF. TRUE/FALSE TRUE
There are ____ precordial leads labeled V1-V6. A. 4 B. 2 C. 6 D. 10 C. 6
The correct sequence for placing leads is A. V1, V2, V3, V4, V6, V5 B. V1, V2, V4, V6, V3, V5 C. V1, V2, V4, V6, V5, V3 D. V5, V4, V3, V2, V1, V6 B. V1, V2, V4, V6, V3, V5
Lead __ is placed in the 4th intercostal space at the right of the sternal border. A. V1 B. V2 C. V3 D. V5 A. V1
Lead __ is placed in the 4th intercostal place at the left of the sternal border. A. V6 B. V4 C. V3 D. V2 D. V2
This lead is placed mid clavicular in the 5th intercostal space. A. V4 B. V6 C. V2 D. V3 A. V4
Lead V6 is placed mid axillary in the 5th intercostal space. TRUE/FALSE TRUE
Lead V3 is placed between leads __ and __. A. V2, V6 B. V2, V3 C. V4, V6 D. V2, V4 D. V2, V4
This lead is placed between leads V4 and V6. A. V1 B. V6 C. V5 D. V3 C. V5
Chests leads are bipolar. TRUE/FALSE FALSE
What are the 3 major functions of an ECG machine? A. Input, signal processing, and input display B. Signal processing C. Input, signal processing, and output display D. Output, signal processing, and output display C. Input, signal processing, and output display
The speed of paper for an ECG is normally ___ and must be noted if changed. A. 25mmg B. 25mm/sec C. 25m D. 25ml B. 25mm/sec
____ controls the height of a waveform and the normal setting is 10mm/mV. A. Gain B. Graph paper C. Artifact filter D. None of these A. Gain
What substances can damage the ECG report? A. sunlight B. plastic C. rubbing alcohol D. all of these D. all of these
To calculate the heart rate for r to r interval: A. subtract 300 from the number of box between 2 R waves B. divide 300 by the number of boxes between 2 R waves C. multiply 300 by the number of boxes between 2 R waves D. add 300 to the number of boxes between 2 R waves B. divide 300 by the number of boxes between 2 R waves
It is ok to use different size electrodes when performing an ECG. TRUE/FALSE FALSE
Each vertical heavy line is ____in time. A. 0.1 second B. 0.4 seconds C. 0.2 seconds D. 0.10 seconds C. 0.2 seconds
Which method must be used if a person has an irregular heartbeat? A. 6 second method B. 300 method C. r to r interval D. 1500 method A. 6 second method
Created by: C to the C
 

 



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