EKG Certification Exam (CET) || 100% Actual Answers.
An EKG technician should recognize that which of the following blood pressure readings is
within the expected reference range for an adolescent patient? correct answers 98/78mmHg —
adolescent
Blood pressure increases as one ages. Ex: 60/40mmHg—Newborn
78/48mmHg—Toddler
86/60mmHg—School age child
What is loss of capture? (Pacemaker alteration) correct answers Loss of capture
Loss of capture occurs when pacemaker spikes appear on the patient's EKG tracing but are not
followed by the appropriate waveforms. In this case, the pacemaker is providing AV pacing, but
there are several pacemaker spikes that are not followed by the appropriate QRS complex. This
indicates that, in those instances, the heart is not responding to the pacemaker's electrical
impulses.
What is oversensing? (Pacemaker Alteration) correct answers Oversensing is the result of the
pacemaker misidentifying an artifact as natural electrical activity in the heart. This alteration
presents on the EKG tracing as insufficient pacemaker spikes on the patient's tracing.
What is 'Failure to pace'? (Pacemaker alteration) correct answers Failure to pace is caused by a
failure of the pacemaker to send electrical impulses to the myocardium. This is indicated on the
EKG tracing by an absence of pacemaker spikes.
What is undersensing? (Pacemaker alteration) correct answers Undersensing is the result of the
pacemaker failing to sense the heart's electrical activity appropriately. This presents itself on the
EKG tracing through pacemaker spikes that appear to be firing inappropriately due to an inability
to recognize myocardial depolarization. Some examples include pacemaker spikes that occur
within the P wave, closely following the QRS complex, or within T waves.
Interrupted Baseline— Appearance and solutions correct answers An interrupted baseline
appears as a break in the baseline on an EKG tracing.
Inspect the cables and connections for any damage or exposed wires.
AC Interference— Appearance and solutions correct answers AC interference appears as
uniform, small spikes on an EKG tracing.
Move the patient's bed or exam table away from the wall. Remove Jewelry. Make sure electronic
devices are not in use.
Wandering Baseline— Appearance and solutions correct answers Wandering baseline occurs
when the baseline drifts away from the center on an EKG tracing. This artifact often occurs due
to improper electrode application.
, Remove tension from the lead wires. Clip chest hair. Make sure electrodes aren't too loose. Can
be caused by profuse sweating.
Somatic Tremor— Appearance and solutions correct answers Somatic tremor appears as small,
erratic spikes on an EKG tracing.
Have the patient place their hands under their buttocks, palms down. Patient should remain quiet.
Which of the following EKG findings differentiates accelerated idioventricular Rhythm from
junctional rhythm? correct answers Accelerated idioventricular Rhythm has wide QRS
complexes.
(The ventricular rate in accelerated idioventricular rhythm is equal to or greater than the rate of
junctional rhythm.
Both an accelerated idioventricular rhythm and a junctional rhythm have regular rhythms.)
While performing an exercise stress test on a patient, the technician observes elevated ST
segment. The technician should identify these findings as which of the following? correct
answers Signs of acute myocardial injury.
While performing an exercise stress test, an increase in the patient's respiratory rate from 18/min
to 36/min: correct answers indicates the patient is experiencing distress
Signs of transient ischemic attack correct answers faintness, loss of consciousness, and
temporary hemiparesis, NOT chest discomfort or sweating.
Signs of a cerebrovascular accident correct answers slurred speech, one-sided weakness, and
facial drooping
Signs of congestive heart failure correct answers swelling due to fluid overload
Myocardial infarction is: correct answers a lack of blood flow to the heart, causing death of
cardiac tissue. Chest discomfort and sweating are manifestations of a potential MI.
Prior to conducting a stress test, the technician should: correct answers Obtain the patient's blood
pressure and an EKG in several different positions prior to the test. The patient should lie supine,
sit up, and stand up while the technician records the blood pressure values.
The technician should ensure that the patient has followed the provider's directions for
medication administration prior to the test, which might be different from the usual
administration schedule. These directions might requiring holding certain medications.
Into which of the following positions should the EKG technician assist patients to undergo a
standard 12-lead EKG? correct answers Supine
An EKG technician should recognize that which of the following blood pressure readings is
within the expected reference range for an adolescent patient? correct answers 98/78mmHg —
adolescent
Blood pressure increases as one ages. Ex: 60/40mmHg—Newborn
78/48mmHg—Toddler
86/60mmHg—School age child
What is loss of capture? (Pacemaker alteration) correct answers Loss of capture
Loss of capture occurs when pacemaker spikes appear on the patient's EKG tracing but are not
followed by the appropriate waveforms. In this case, the pacemaker is providing AV pacing, but
there are several pacemaker spikes that are not followed by the appropriate QRS complex. This
indicates that, in those instances, the heart is not responding to the pacemaker's electrical
impulses.
What is oversensing? (Pacemaker Alteration) correct answers Oversensing is the result of the
pacemaker misidentifying an artifact as natural electrical activity in the heart. This alteration
presents on the EKG tracing as insufficient pacemaker spikes on the patient's tracing.
What is 'Failure to pace'? (Pacemaker alteration) correct answers Failure to pace is caused by a
failure of the pacemaker to send electrical impulses to the myocardium. This is indicated on the
EKG tracing by an absence of pacemaker spikes.
What is undersensing? (Pacemaker alteration) correct answers Undersensing is the result of the
pacemaker failing to sense the heart's electrical activity appropriately. This presents itself on the
EKG tracing through pacemaker spikes that appear to be firing inappropriately due to an inability
to recognize myocardial depolarization. Some examples include pacemaker spikes that occur
within the P wave, closely following the QRS complex, or within T waves.
Interrupted Baseline— Appearance and solutions correct answers An interrupted baseline
appears as a break in the baseline on an EKG tracing.
Inspect the cables and connections for any damage or exposed wires.
AC Interference— Appearance and solutions correct answers AC interference appears as
uniform, small spikes on an EKG tracing.
Move the patient's bed or exam table away from the wall. Remove Jewelry. Make sure electronic
devices are not in use.
Wandering Baseline— Appearance and solutions correct answers Wandering baseline occurs
when the baseline drifts away from the center on an EKG tracing. This artifact often occurs due
to improper electrode application.
, Remove tension from the lead wires. Clip chest hair. Make sure electrodes aren't too loose. Can
be caused by profuse sweating.
Somatic Tremor— Appearance and solutions correct answers Somatic tremor appears as small,
erratic spikes on an EKG tracing.
Have the patient place their hands under their buttocks, palms down. Patient should remain quiet.
Which of the following EKG findings differentiates accelerated idioventricular Rhythm from
junctional rhythm? correct answers Accelerated idioventricular Rhythm has wide QRS
complexes.
(The ventricular rate in accelerated idioventricular rhythm is equal to or greater than the rate of
junctional rhythm.
Both an accelerated idioventricular rhythm and a junctional rhythm have regular rhythms.)
While performing an exercise stress test on a patient, the technician observes elevated ST
segment. The technician should identify these findings as which of the following? correct
answers Signs of acute myocardial injury.
While performing an exercise stress test, an increase in the patient's respiratory rate from 18/min
to 36/min: correct answers indicates the patient is experiencing distress
Signs of transient ischemic attack correct answers faintness, loss of consciousness, and
temporary hemiparesis, NOT chest discomfort or sweating.
Signs of a cerebrovascular accident correct answers slurred speech, one-sided weakness, and
facial drooping
Signs of congestive heart failure correct answers swelling due to fluid overload
Myocardial infarction is: correct answers a lack of blood flow to the heart, causing death of
cardiac tissue. Chest discomfort and sweating are manifestations of a potential MI.
Prior to conducting a stress test, the technician should: correct answers Obtain the patient's blood
pressure and an EKG in several different positions prior to the test. The patient should lie supine,
sit up, and stand up while the technician records the blood pressure values.
The technician should ensure that the patient has followed the provider's directions for
medication administration prior to the test, which might be different from the usual
administration schedule. These directions might requiring holding certain medications.
Into which of the following positions should the EKG technician assist patients to undergo a
standard 12-lead EKG? correct answers Supine
