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Quiz :When the technician is performing a 12 lead EKG, how many electrodes
are used to record the 12 views of the heart? - Answer :10
When the technician is performing a 12 lead EKG, there would be 10
electrodes used to record the 12 leads or views of the heart. Twelve leads
doesn't necessarily mean 12 electrodes.
Quiz :Segments and waveforms on an ECG would include all but which of the
following? - Answer :TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT
intervalP waveST segmentU waveT wave
Quiz :The parasympathetic nervous system would do which of the following? -
Answer :All of the above
The parasympathetic nervous system would:Slow the patient's heart
rateEnhance digestionDecrease the patient's blood pressureIs mediated by
acetylcholine
Quiz :If the contact on a electrode is not conducting well or the placement is
wrong, which of the following could occur? - Answer :Wandering baseline
If the contact on a electrode is not conducting well or the placement is wrong,
it could cause a wandering baseline. The wandering baseline can also be
caused by chest wall during respiration.
Quiz :When interpreting a cardiac rhythm strip, all of the following would be
considered steps except? - Answer :Determining the age of the patient
When interpreting a cardiac rhythm strip, there are 5 steps:
Examine all of the components and the shape of the waveforms.
Check the position of the P wave.
Determine if all the complexes are alike.
Determine the rate of the rhythm and if it is normal or abnormal.
Evaluate if the rhythm is regular or irregular.
, Quiz :Which of the following is the typical maximum length for a PR interval? -
Answer :0.20 seconds is the typical maximum length for PR interval. This of
course can vary with heart rate from 0.12 to 0.20 seconds.
Quiz :Which of the following artifact results from electrical equipment, mobile
telephones, and electrical power lines? - Answer :Electromagnetic
interference, also known as 60 cycle interference, is artifact caused by
electrical equipment, mobile telephones, and electrical power lines. To
minimize 60 cycle interference (or 60 Hz pickup), the technician should set the
diagnostic mode of the 12-lead electrocardiogram monitor to 0.05-40 Hz. With
the low frequency/high pass filter set to 0.05 the monitor should produce
accurate ST-segments.
Quiz :In the 1,500 method for calculating atrial rate, the technician should
count which of the following? - Answer :Squares between two consecutive P
waves
To calculate atrial rate with the 1,500 method, the technician would tally the
little squares between two consecutive P waves and then divide 1,500 by that
amount. There are 1,500 small squares in a one minute rhythm strip.
Quiz :Which of the following would not be considered a patient area of
education? - Answer :Providing financial counseling
There are 4 areas of patient education:
1.Restoration of health
2.Maintenance and promotion
3.Coping with new illness or impairment
4.Prevention of illness and injury
Quiz :All of the following medications could cause bradycardia except? -
Answer :NSAIDs
Bradycardia can be caused by the following medications:
Beta-adrenergic blockers
Digoxin
Calcium channel blockers
Lithium
Antiarrhythmics (sotalol, amiodarone, propafenone, and quinidine)
Quiz :Generally, the chest leads are oriented through which of the following to
project through the patient's back? - Answer :AV node