EKG-NCCT Practice Questions with
Answers 100% pass
Which of the following occurs when a singular irritable impulse fires so rapidly it
bombards the AV node, causing V shaped or upside down V shaped waves?
a. ventricular flutter
b. atrial flutter
c. ventricular tachycardia
d. atrial tachycardia - ANSWER-atrial flutter
A constant PRI (PR Interval) that exceeds 0.20 seconds indicates a/an
__________________
a. first degree AV block.
b. second degree AV block.
c. third degree AV block.
d. AV block 2:1 conduction. - ANSWER-first degree AV block
While obtaining vitals on an infant, how is the heart rate measured?
a. Palpate the radial pulse for 60 seconds.
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,b. Auscultate the apical pulse for 60 seconds.
c. Auscultate the brachial pulse for 60 seconds.
d. Palpate the femoral pulse for 60 seconds. - ANSWER-Auscultate the apical
pulse for 60 seconds.
Proper electrode placement for continuous ECG monitoring is identified by the
use of
a. 3 leads placed on the patient's torso.
b. 5 electrodes placed on the patient's extremities and torso.
c. 10 electrodes placed on the patient's torso.
d. 12 electrodes placed on the patient's extremities and torso. - ANSWER-3 leads
placed on the patient's torso.
Which of the following actions should the ECG technician take if a 3 second
period of sinus arrest is observed on an asymptomatic patient?
a. Call a code.
b. Check the patient for a pulse.
c. Ask the patient to remain still.
d. Inform the physician about the pause. - ANSWER-Inform the physician about
the pause.
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,Ventricular pacemaker cells are found at the
a. left bundle branch.
b. Purkinje fibers.
c. right bundle branch.
d. SA node. - ANSWER-Purkinje fibers
During an ECG, the right leg provides grounding for which leads?
a. Bipolar
b. Augmented
c. Chest
d. Precordial - ANSWER-Augmented
If the arm limb electrodes are reversed on the patient, where on the ECG tracing
will this change be depicted?
a. I and AVR
b. I and AVL
c. II and AVL
d. II and AVF - ANSWER-I and AVR
Which of the following instructions should be given to patients prior to stress
testing? (Select the two (2) correct answers.)
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, a. Wear comfortable clothes, including athletic shoes.
b. No food or drink is allowed after midnight prior to the test.
c. Refrain from alcohol, tobacco and caffeine 48 hours prior to the test.
d. Take all prescribed medications two hours prior to the test.
e. Eat a light meal two hours prior to the test. - ANSWER--Wear comfortable
clothes, including athletic shoes.
-Eat a light meal two hours prior to the test.
When the patient is receiving a routine ECG, the waveform that indicates an
increased risk for certain dysrhythmias and sudden death is a shorter or longer than
normal
a. PR interval.
b. QT interval.
c. PR segment.
d. ST segment. - ANSWER-QT interval.
During a patient's yearly checkup, the physician orders an outpatient ECG. Which
of the following instructions are likely to be given to the patient at the hospital?
(Select the two (2) correct answers.)
a. Wear comfortable clothing, including athletic shoes.
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Answers 100% pass
Which of the following occurs when a singular irritable impulse fires so rapidly it
bombards the AV node, causing V shaped or upside down V shaped waves?
a. ventricular flutter
b. atrial flutter
c. ventricular tachycardia
d. atrial tachycardia - ANSWER-atrial flutter
A constant PRI (PR Interval) that exceeds 0.20 seconds indicates a/an
__________________
a. first degree AV block.
b. second degree AV block.
c. third degree AV block.
d. AV block 2:1 conduction. - ANSWER-first degree AV block
While obtaining vitals on an infant, how is the heart rate measured?
a. Palpate the radial pulse for 60 seconds.
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 1
,b. Auscultate the apical pulse for 60 seconds.
c. Auscultate the brachial pulse for 60 seconds.
d. Palpate the femoral pulse for 60 seconds. - ANSWER-Auscultate the apical
pulse for 60 seconds.
Proper electrode placement for continuous ECG monitoring is identified by the
use of
a. 3 leads placed on the patient's torso.
b. 5 electrodes placed on the patient's extremities and torso.
c. 10 electrodes placed on the patient's torso.
d. 12 electrodes placed on the patient's extremities and torso. - ANSWER-3 leads
placed on the patient's torso.
Which of the following actions should the ECG technician take if a 3 second
period of sinus arrest is observed on an asymptomatic patient?
a. Call a code.
b. Check the patient for a pulse.
c. Ask the patient to remain still.
d. Inform the physician about the pause. - ANSWER-Inform the physician about
the pause.
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 2
,Ventricular pacemaker cells are found at the
a. left bundle branch.
b. Purkinje fibers.
c. right bundle branch.
d. SA node. - ANSWER-Purkinje fibers
During an ECG, the right leg provides grounding for which leads?
a. Bipolar
b. Augmented
c. Chest
d. Precordial - ANSWER-Augmented
If the arm limb electrodes are reversed on the patient, where on the ECG tracing
will this change be depicted?
a. I and AVR
b. I and AVL
c. II and AVL
d. II and AVF - ANSWER-I and AVR
Which of the following instructions should be given to patients prior to stress
testing? (Select the two (2) correct answers.)
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 3
, a. Wear comfortable clothes, including athletic shoes.
b. No food or drink is allowed after midnight prior to the test.
c. Refrain from alcohol, tobacco and caffeine 48 hours prior to the test.
d. Take all prescribed medications two hours prior to the test.
e. Eat a light meal two hours prior to the test. - ANSWER--Wear comfortable
clothes, including athletic shoes.
-Eat a light meal two hours prior to the test.
When the patient is receiving a routine ECG, the waveform that indicates an
increased risk for certain dysrhythmias and sudden death is a shorter or longer than
normal
a. PR interval.
b. QT interval.
c. PR segment.
d. ST segment. - ANSWER-QT interval.
During a patient's yearly checkup, the physician orders an outpatient ECG. Which
of the following instructions are likely to be given to the patient at the hospital?
(Select the two (2) correct answers.)
a. Wear comfortable clothing, including athletic shoes.
COPYRIGHT 2025 ALL RIGHTS RESERVED, TRUSTED AND VERIFIED 4
