EKG NCCT Practice Questions & Answers
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.
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.
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.)
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.
b. Do not use any lotions or creams.
c. Remove any stockings and roll up pant legs, as needed.
d. Remove all piercings.
e. Have someone available to drive you home. - ANSWER:-Do not use any lotions or creams.
-Remove any stockings and roll up pant legs, as needed.
Which of the following precautions should the ECG technician take for a patient with dormant
tuberculosis?
a. Standard
b. Airborne
c. Droplet
d. Contact - ANSWER:Standard
The use of smaller electrodes while running an ECG on a four year old pediatric patient will require
which of the following modifications?
a. Decrease the paper speed.
b. Increase the paper speed.
c. Place the patient in Sim's position.
d. Place the patient in a dorsal recumbent position. - ANSWER:Increase the paper speed.
During a treadmill stress test which of the following vital signs should be monitored most frequently?
a. respiration
b. blood pressure
c. pulse
d. pulse oximetry - ANSWER:blood pressure
The time interval after ventricular depolarization and before ventricular repolarization is the
a. QT interval.
b. ST segment.
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.
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.
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.)
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.
b. Do not use any lotions or creams.
c. Remove any stockings and roll up pant legs, as needed.
d. Remove all piercings.
e. Have someone available to drive you home. - ANSWER:-Do not use any lotions or creams.
-Remove any stockings and roll up pant legs, as needed.
Which of the following precautions should the ECG technician take for a patient with dormant
tuberculosis?
a. Standard
b. Airborne
c. Droplet
d. Contact - ANSWER:Standard
The use of smaller electrodes while running an ECG on a four year old pediatric patient will require
which of the following modifications?
a. Decrease the paper speed.
b. Increase the paper speed.
c. Place the patient in Sim's position.
d. Place the patient in a dorsal recumbent position. - ANSWER:Increase the paper speed.
During a treadmill stress test which of the following vital signs should be monitored most frequently?
a. respiration
b. blood pressure
c. pulse
d. pulse oximetry - ANSWER:blood pressure
The time interval after ventricular depolarization and before ventricular repolarization is the
a. QT interval.
b. ST segment.
