WorksheetsEKG OPERATIONS 1
Total questions: 35
Worksheet time: 18mins
Which of the following describes how the EKG machine works
records the electrical activity of the heart
makes a picture of the heart
makes a tracing of the heart and lungs activity
records the impulse from the brain
in order to get a clear ekg tracing the patient must be lying:
quietly in the prone position
in the trandelendurg position
in the sims position
in supine position
which of the following describes the ekg electrode position
it doesnt make any difference where the electrodes are placed on the patient, as long as each limb has a lead on it
all electrodes must be placed in a specific location on the patients chest only
the electrodes on the arms and legs are color coded and must be in the correct location. the chest electrodes must be in the correct location on patients chest
all electrodes must be on the left chest wall
how many leads are recorded strictly from the 4 extremities electodes?
6
4
12
10
how many leads are recorded from the 6 chest electrodes
6
4
12
10
which of the following lubricants can be used when doing a 12 lead EKG
paste with electrolytes in it
paste without electrolytes in it
ultrasound gel
K-Y jelly
the EKG machine can pick up interference from which of the following sources
other electrical machinery
electrical wall outlets
the patient
all of the choices
which of the following leads are recorded strictly from the 4 extremities electrodes
Lead 1, lead 2, lead 3
AVR, AVL, AVF
leads V1-V6
both A&B
The patient could be injured from the EKG machine from which of the following sources
if the patient moves he/she might be shocked
if theres an electrical storm when the EKG is being recorded
if the patient is wearing an electrical watch
none of the choices. the patient cannot be injured while an EKG is being recorded
which of the following leads are recorded from the 6 chest electrodes
lead 1, lead 2, lead 3
AVR, AVL, AVF
Leads V1-V6
Both A&B
during a code blue emergency, which of the following will the EKG tech need to do
do a 12 lead EKG
record all chest leads
record one lead only
record all augmented leads
keeping in mind the patient's modesty, the EKG tech should do which of the following when recording a female patient?
keep the patient covered until the chest need to be done, then cover the chest if possible after the electrodes are attached
place the EKG leads over the patient's clothing
have the patient leave her bra on
have the patient put her clothes back on after you have attached the chest electrodes
the EKG waves are labeled PQRST, which of the following describes what these letters stand for
the first letter of the name of the wave
the last letter of the name of the lead
the begging letters of the polarization sequences of the heart
they stand for nothing
when might an EKG tracing have a U wave
decreased K+
increased K+
electrolyte balance
onset of a MI
where will the electrodes be placed to record the augmented leads of the 12 lead EKG
chest
arms and legs
head
abdomen
which of the following are ways to determine the rate of the heart from a 12 lead EKG
using a ruler to measure millimeters between complexes
the R waves counted on a 6in strip
take the patient's pulse while doing the EKG
count the P waves and subtract the number of R waves
which of the following is the normal PR interval
0.12-0.20 MM of voltage
0.12 -0.20 per second
0.16 -0.20 MM of voltage
0.02- 0.08 per second
when the SA node initiates an impulse the ECG shows this in the
QRS complex
P wave
R wave
T wave
when the QRS complex is seen in an EKG, this is when which of the following is happening in the heart
ventricular impulse and contraction
atrium impulse and contraction
atrium is firing multifocal impulses
ventricle is resting
after the T wave or U wave and before the P wave in NSR is when which of the following is happening in the heart
heart rest
upper chambers are contracting
lower chambers are contracting
SA node is firing
to measure the atrial rate on the EKG you will count the
QRS complex
P waves
R waves
PR intervals
to measure the ventricular rate on the EKG you will count the
QRS complex
P waves
R waves
PR intervals
AVR is considered the
bipolar limb lead
augmented or unipolar limb lead
chest or precordial lead
none of the choices
V4 is considered the
bipolar limb lead
augmented or unipolar lead
chest or precordial lead
none of the choices
AVF is considered the
bipolar lead
augmented or unipolar limb leads
chest or precordial leads
none of the choices
Lead II is considered the
bipolar limb lead
augmented or unipolar limb lead
chest of precordial lead
none of the choices
the PR interval can be defined as
first positive area produced by depolarization of the ventricles
a long wave following QRS during repolarization of the ventricles
isoelectric portion of the interval that precedes ventricular depolarization
it represents the depolarization of the atria when the atria start to contract
the R wave can be defined as
it represents the depolarization of the ventricles, it represents a ventricular impulse
it represents the depolarization of the atrias, when the atrias begin to contract
first positive area produced by the depolarization of the ventricles
is measured from the begging of the Q wave where the wave is completed
the S wave can be defined as:
first negative area that follows an R wave during depolarization of the ventricles
is measured from the begging of the Q wave through where the wave is complete
a long wave following QRS during repolarization of the ventricles
it represents the depolarization of the ventricles, it represents a ventricular impulse
the T wave can be defines as
first positive area produced by the depolarization of the ventricles
a long wave following QRS during repolarization of the ventricles
isoelectric portion of the interval that precedes ventricular depolarization
it represents the depolarization of the ventricles, it represents a ventricular impulse
The P wave can be defined as
it represents the depolarization of the atria, when the atria starts to contract
it represents the depolarization of the ventricles
isoelectric portion of the interval that precedes ventricular depolarization
it can mean an electrolyte problem (K decrease)
the QRS complex can be defined as
is measured from the begging of the Q wave through were the wave is complete
a long wave following QRS during repolarization of the ventricles
it represents the depolarization of the ventricles, it represents a ventricular impulse
first positive area produced by the depolarization of the ventricles
the ST segment can be defined as
first negative area that follows an R wave during depolarization of the ventricles
it is the point where the tracing turns, in a myocardial infraction this segment will be elvated
a long wave following QRS during repolarization of the ventricles
it represents the depolarization of the ventricles, it represents a ventricular impulse
The U wave can be defined as
is sometimes seen, but not often
it can mean electrolyte problem (K decrease)
it may be normal for the patient
all of the choices are true of the U wave
the QT interval can be defined as
is measured from beginning of the Q wave through where the wave is complete
it represents the depolarization of the ventricles, it represents a ventricular impulse
it represents the depolarization of the atria, when the atria start to contract
it can mean an electrolyte problem (K decrease)
