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WorksheetsEKG Tech Mid Term Review 2425
Total questions: 62
Worksheet time: 31mins
During a medical class, Anika was asked which of the following is NOT a bipolar lead?
AVF
Lead II
Lead I
Lead III
During a biology class, Benjamin was asked what is formed by joining leads I, II, and III at their ends. What should he answer?
Einthoven's triangle.
the precordial leads.
the triaxial diagram.
the hexiaxial diagram.
During a medical class, Ava was learning about ECGs and was asked where the precordial leads are located. What should she answer?
chest.
back.
arms.
legs.
During a medical training session, Jackson was learning about different types of EKG leads. He was curious to know which leads are referred to as augmented leads.
leads in which the EKG machine must increase the voltage.
the same as bipolar leads.
the same as precordial leads.
Leads I, II, and III.
During a medical training session, Aiden was asked to identify which of the following is NOT a precordial lead?
aVR
V6
V5
V1
During a biology class, Liam was learning about electrocardiograms. His teacher asked, "Liam, can you tell me which limbs are connected by Lead I in an ECG?"
Right arm and left leg
Right arm and right leg
Right arm and left arm
Left arm and right leg
During a biology class, Aria is learning about ECG leads. She wonders, Lead II connects which limbs?
Right arm and left leg
Right arm and right leg
Right arm and left arm
Left arm and right leg
During a biology class, Daniel was learning about the human heart and its electrical activity. His teacher asked him, "Lead III connects which limbs?"
Right arm and left leg
Right arm and right leg
Right arm and left arm
Left arm and left leg
During a medical training session, Kai was asked to identify where the positive pole of AVR is located. What should he answer?
right leg.
left arm.
right arm.
left leg.
During a medical class, Zoe was asked where the positive pole of AVL is located. Can you help her?
left leg.
left arm.
right leg.
right arm.
During a medical training session, Noah was learning about different types of ECG leads. He came across AVF and wanted to know more about it. Which of the following statements about AVF is correct?
is a precordial lead.
is an augmented lead.
has its positive pole on the left arm.
is a bipolar lead.
During a medical training session, David is learning about different types of ECG leads. He is asked to identify which type of leads have a positive pole and a negative pole. What should David choose?
are leads V1 through V6.
have a positive pole and a negative pole.
join leads on the back of the body with leads on the front.
have a positive pole and a central terminal acting as negative pole.
During a medical training session, Aria was asked to identify V1 through V6 on an ECG. These are the
frontal leads.
precordial leads.
bipolar leads.
augmented leads.
Samuel is learning about Einthoven's law in his biology class. He needs to remember that
V1 + V5 = V4.
Lead I + Lead III = Lead II.
Lead II + Lead III = Lead I.
Lead I + Lead II = Lead III.
During a medical training session, Harper is learning about ECG interpretation. She is asked to describe the QRS complex in the precordial lead V1.
should be a primarily negative deflection.
should be a primarily positive deflection.
represents atrial depolarization.
should be isoelectric.
Emma is studying for her medical exam and comes across a question: Which of the following is NOT a lead comprising the hexiaxial diagram?
V3
Lead III
aVR
Lead I
During a biology class, Abigail was learning about the human body's electrical activity. Her teacher explained that AVF's negative reference point is formed by finding the midway point between which limbs?
Left arm and left leg
Left arm and right leg
Right arm and right leg
Right arm and left arm
During a medical training session, Kai is learning to place ECG electrodes. Where should Kai place the V1 electrode?
fifth intercostal space, left sternal border.
first intercostal space, left sternal border.
fourth intercostal space, left sternal border.
fourth intercostal space, right sternal border.
During a physiology class, Arjun observes an impulse traveling away from a positive electrode. What will this write on the EKG?
positive QRS complex
flat line
isoelectric QRS
negative QRS complex
During a medical training session, Aiden is learning about ECG interpretation. In which lead should he expect to see the tallest QRS complex?
Lead I
Lead III
aVF
Lead II
Anika is studying electrocardiograms in her medical class. She wants to know, in which of the following leads should the QRS complex be negative?
aVR
Lead I
aVL
Lead II
Aiden is studying electrocardiograms in his medical class. He needs to determine in which of the following leads the QRS complex should be positive. Can you help him?
AVR
V2
V1
V6
During a biology class, Arjun was asked to identify the bipolar lead formed by joining the right arm and right leg in an ECG setup. What should be his answer?
Lead III.
Lead II.
Lead I.
There is no such lead.
During a medical class, Sophia is learning about ECG readings. If Lead II's QRS complex is positive, the heart's current is traveling toward the
right leg.
left leg.
right arm.
left arm.
During a medical class, Sophia was learning about ECG leads. Her instructor explained that if Lead aVR's QRS is positive, the heart's current would be traveling toward the
right arm.
right leg.
left arm.
left leg.
During a medical training session, Isla is learning about EKGs. She wonders, in what way are augmented leads manipulated when they are printed?
They are printed on special EKG paper with only little boxes and no big boxes.
Their size is increased so they are large enough to record on EKG paper.
They are printed on special EKG paper with only big boxes and no little boxes.
Their size is decreased in order to fit them onto the EKG paper.
During a biology class, Isla is learning about how EKG machines work. She wonders how the EKG machine increases the size of waves and complexes in augmented leads. What is the mechanism behind this?
It eliminates the positive pole.
It eliminates the negative pole.
It decreases the voltage.
It increases the voltage.
Grace, a medical student, is learning about ECG monitoring. She wants to know which of the following leads would be most appropriate for continuous monitoring of an individual with an abnormality in ventricular conduction?
Lead II
AVR
V₄
MCL₁
Ava is a nurse in a busy hospital ward and needs to continuously monitor a patient's heart activity. Why is it advantageous for Ava to use Lead II for this purpose?
It provides excellent views of P waves and QRS complexes.
It does not require the right leg to serve as the ground.
It provides the clearest hexaxial and triaxial diagrams.
It is located at the most comfortable location for the patient.
Rohan is learning about electrocardiograms in his biology class. His teacher explains that the QRS complex is a part of the ECG that shows the electrical activity of the heart. Which of the following scenarios will produce a positive QRS complex on the ECG machine?
An electrical impulse traveling toward a positive electrode
An electrical impulse traveling at a 45 degree angle to a positive electrode
An electrical impulse traveling at a right angle to a positive electrode
An electrical impulse traveling away from a positive electrode
During a medical training session, Grace is learning about different tools used in cardiology. How is the hexaxial diagram used?
It is used to determine if the leads were placed on the correct limb.
It is used to determine the frequency of P waves.
It is used to determine the direction of current flow in the heart.
It is used to determine the size of the QRS complex.
During a science class experiment, Evelyn noticed that the ECG readings were not stable. What is the most likely cause of the somatic tremor artifact in this scenario?
electrical interference.
patient movement.
lotion on the skin interfering with the signal.
respirations.
During a science experiment, Rohan noticed that the readings on his electronic device were inconsistent. What is a common cause of sixty-cycle interference in such situations?
electrical interference.
lotion on the skin interfering with the signal.
respirations.
patient movement.
During a routine ECG check for Elijah, the technician noticed that the P wave, QRS complex, and T wave were inverted in Lead I. What is the most common cause for this observation?
myocardial infarction.
left bundle branch block.
dextrocardia.
incorrect lead placement.
During a medical training session, Luna is learning to use the EKG machine. She is curious about what the "gain" setting on the machine affects. What does the "gain" setting on the EKG machine concern?
Einthoven's law.
the size of the patient.
electrical conduction through the bundle branches.
the amplitude of the waves and complexes.
Isla is performing a 12-lead EKG on a patient who has tremors that make the EKG hard to read. She should
make several attempts at a good tracing, then document on the EKG how many attempts were made.
call the physician and ask for medication to stop the tremors.
leave, telling the nurse to call her when the tremors stop, so she can return and try again.
do the EKG as usual with no documentation about tremors.
Emma is learning how to interpret EKGs in her medical class. She needs to know the normal paper speed for printing out the EKG. What is it?
20 mm/sec.
25 mm/sec.
10 mm/sec.
50 mm/sec.
During a hospital safety training session, Sophia is learning about electrical safety. She is asked: Macroshock and microshock are LEAST likely to be caused by which of the following?
Broken grounding prong on the electrical cord
Properly maintained EKG machine
Ungrounded hospital bed on which the patient is lying
Frayed electrical cord on the EKG machine
During a practical session, Olivia noticed that the ECG machine showed artifact in leads I, II, and aVR. The most likely source of the artifact is on the
right leg.
left leg.
right arm.
left arm.
During a medical training session, Ava is learning how to differentiate between an artifact and a real cardiac rhythm on a monitor. Which of the following is NOT a method she should use?
Immediately defibrillate the patient.
Follow any visible QRS complexes.
Check your patient for signs of decreased cardiac output
Check the wires and patches.
During a biology class, Emma is learning about how an EKG machine works. She is curious about the role of a digital converter in the machine.
controls the amount of artifact.
is the pen that prints out the EKG tracing.
converts the analog signal to a digital one.
controls the calibration of the machine.
Michael, an EMS worker, uses a modern EKG machine that is Bluetooth-capable. This allows him to
hear the EKG's interpretation via special headphones.
transmit the EKG to the nearest hospital so workers can prepare for the patient's arrival.
listen to their favorite music station while on the job.
control the artifact on the EKG.
Maya is monitoring a sleeping patient’s 12-lead EKG. She notices that Lead I’s waves and complexes are extremely jittery—completely unreadable—as are aVR’s. The most likely cause of this is
right arm electrode or patch is loose or off.
gain is set too low.
heart is on the right side of the body instead of the left.
patient has an arrhythmia.
William, a medical student, is performing a 12-lead EKG on a patient and notices artifact in leads II, III, and aVF. To reduce the artifact, he decides to check the patches.
on the right arm.
on the left leg.
at the 4th ICS, LSB.
at the 5th ICS, MCL.
Rohan, a medical student, is observing a patient who is experiencing chills. What kind of artifact can this produce?
Broken recording
Baseline sway
Somatic tremors
60–cycle interference
During a medical training session, Avery noticed an artifact in the ECG readings on leads II, III, and aVF. On which limb(s) would Avery expect to find the cause of the artifact?
Left leg
Right arm
Right arm and left leg
Left arm
Your patient, Lily, is smiling and visiting with family, but the cardiac monitor shows that the patient’s heart has completely stopped. The rhythm on the monitor is thus
dangerous, but it can wait awhile.
artifact.
a life-threatening emergency.
"toothbrush tachycardia."
While Rohan was brushing his teeth, the ECG machine showed an unusual pattern. What is this artifact caused by the jiggling of wires during toothbrushing called?
CPR artifact.
"toothbrush asystole."
"toothbrush tachycardia."
PVCs.
While working in the emergency room, Nora notices that a patient's cardiac rhythm appears life-threatening on the monitor. What should be her FIRST action?
exchange the cardiac monitor for a new one.
check the monitor wires and patches.
check the patient–assess vital signs and see how he/she feels.
notify the family of the patient’s deteriorating condition.
During a practical session, Evelyn is learning how to minimize muscle artifact in ECG readings. Her instructor advises her to monitor the patient in Lead
II.
V1 or MCL1.
I.
aVR.
Muscle artifact is seen most often in
leads whose negative electrode is on the right arm.
the precordial leads.
leads whose positive electrode is on the right leg.
the limb leads.
Microshock is different from macroshock in that microshock is
caused by inadequate grounding of electrical equipment.
a lower-voltage electrical shock.
incapable of causing death.
a higher-voltage electrical shock.
Which of the following is NOT true about how the heart's electrical impulses result in the printed EKG?
Heart's impulses are picked up by electrodes on the skin.
A digital converter changes the analog signal to a digital one.
Electrodes send the signal through a cable to an amplifier in the EKG machine.
The heart impulses are sent through a microphone.
To minimize artifact, what must be done?
Tell the patient not to move during the EKG
Tell the patient not to breathe during the EKG
Attach electrode patches securely
All but B
Which of the following correctly describes the function of the gain setting on the EKG machine?
It controls the speed of the recording.
It filters out extraneous noise and artifact.
It regulates the height of the complexes.
It sends a message to the physician about any abnormality on the EKG.
If artifact is seen in leads I, III, and aVL, the problem is on which limb?
Right arm
Left leg
Right leg
Left arm
The part of the EKG machine that converts an analog signal to a digital signal is the
digital converter.
lead wire.
electrode.
amplifier.
Electrically speaking, the heart is a
receiver.
cable.
galvanometer.
transmitter.
Small adhesive patches with conductive gel on the skin side are
conduits.
cables.
electrodes.
oscilloscopes.
Which lead is most commonly used to monitor the heart rhythm during surgery?
Lead I
aVR
Lead II
Lead III
What is the primary purpose of the precordial leads in an EKG?
To assess blood pressure
To measure heart rate
To detect arrhythmias
To provide a view of the heart's electrical activity in the horizontal plane
Which of the following leads is considered an augmented lead?
Lead II
aVL
Lead I
V1
