Basic territory
The EKG records the electrical activity of the heart using skin-attached stickers called
Electrodes
What is a cause of a somatic tremor
Muscle movement or shivering
This arrhythmia is characterized by an "irregularly irregular" rhythm and the absence of P waves.
atrial fibrillation
This limb electrode is represented by the color white
right arm
This chest electrode is placed in the fifth intercostal space, along the midclavicular line.
V4
Name the order of the heart's electrical conduction system
SA node, AV node, Bundle of HIs, Rt and Lt bundle branches, purkinje fibers
If a patient has a seizure while you are performing an ECG you should
Protect the pt from injury
On an EKG, this arrhythmia is identified by a classic "sawtooth" pattern of F-waves
atrial flutter
This limb electrode is represented by the color black
Located to the right of the sternum in the fourth intercostal space, this is the first precordial electrode.
V1
What part of the heart cycle do we get a P wave
atrial depolarization
Who's main responsibility is it to view ECG tracings and alert physician if anything is abnormal
ECG monitor technician
An irregularly irregular rhythm with fibrillatory waves and an irregularly rapid ventricular response.
atrial fibrillation with a rapid ventricular rate
The "smoke over fire" mnemonic helps with the placement of these two limb leads.
the left arm (black) and left leg (red) leads
This electrode is placed on the left side, at the same horizontal level as V4, but along the anterior axillary line.
V5
The ability of the heart cells to receive and transmit an electrical impulse is known as
conductivity
What method for calculating heartrate is the only one to be used for irregular rythyms
6 seconds
A slow, wide-complex rhythm where the P waves and QRS complexes march to their own beat, entirely unrelated to each other.
third-degree AV block
this is the color of the ground electrode.
green
If a patient has an amputation, the EKG technician should place the limb electrode in this alternate location.
the closest available non-amputated part of the limb, or on the torso?
After you have prepared the ECG machine and attached the electrodes and leads to the patient what do you do next if it's an automatic machine?
Press run
When the waveforms are too close together what adjustment do you make to the ECG machine
change the paper speed from 25mm/s to 50 mm/s
A tachycardia with a rate of 150–250 bpm, narrow QRS complexes, and often no visible P waves, as they are buried within the QRS complexes.
supraventricular tachycardia
Changes in these leads are associated with a lateral MI.
leads I, aVL, V5, and V6
For a standard 12-lead EKG, the limb electrodes should be placed on the upper and lower extremities, avoiding these areas.
bony prominences