NHA EKG (CET) EXAM | QUESTION
AND ANSWER | VERIFIED QUESTIONS
AND ANSWERS | UPDATED 2025/2026
|GRADED A+
What action should the technician instruct the patient to take if any electrodes
become loose during at-home use of an ambulatory monitor?-CORRECT
ANSWER Apply surgical tape to the electrodes to keep them in place
Which leads record activity of the inferior wall of the left ventricle?-CORRECT
ANSWER Leads III and AVF
What rhythm is characterized by absent P waves, wide QRS complexes, and a
ventricular rate between 20-40/mins?-CORRECT ANSWER Idioventricular
rhythm
What leads record electrical activity of the lateral wall of the left ventricle? -
CORRECT ANSWER Leads I, V6, AVL, and V5
In which locations should the EKG technician place the electrodes for a 3-lead
ambulatory monitor?-CORRECT ANSWER on the right shoulder, the left
shoulder, and the left abdomen
An EKG technician is performing a stress test for a patient. What changes indicate
that the patient is beginning to show signs of myocardial ischemia? -CORRECT
ANSWER Depressed ST segment
,What leads are bipolar?-CORRECT ANSWER Leads I, II, and III
What is the expected reference range for respiratory rate of a newborn patient? -
CORRECT ANSWER 30-49/min
An EKG technician is providing instructions for a patient who is scheduled for an
exercise stress test. What instructions should technician include?-CORRECT
ANSWER "You should avoid wearing shoes with high heels for this test."
An EKG technician is preparing a patient for an exercise stress test. What
statement should the technician make before this test?-CORRECT ANSWER
"This procedure requires informed consent."
What is the final step when applying a Holter monitor?-CORRECT ANSWER
Document the procedure in the patient's health record
An EKG technician prior to an exercise stress test. What statement by the patient
indicates an understanding of the preparation?-CORRECT ANSWER "I can
smoke the night before the exam."
A patient has a prescription to wear a Holter monitor for 24 hrs. What statement
made by the patient indicates an understanding of home care instructions?-
CORRECT ANSWER "I should record spontaneous symptoms unrelated to
an activity."
,After turning on the AED and attaching the AED to the patient, what should be
done next?-CORRECT ANSWER Stand clear from the patient and allow the
AED to analyze
In a healthy adult patient, what is the expected shape and direction of the P wave in
lead II?-CORRECT ANSWER rounded and upright
What statement should an EKG technician include when preparing a patient for an
upcoming exercise stress test?-CORRECT ANSWER "Refrain from caffeine,
smoking, or alcohol for at least 3 hours prior to the test."
What lead is created between the left arm and left leg?-CORRECT ANSWER
Lead III
What speed setting should the technician use for a standard 12-lead EKG for a
patient experiencing an accelerated junctional rhythm?-CORRECT ANSWER
25mm/second
(a patient experiencing accelerated junctional rhythm has a heart rate of 60-100
min)
An EKG technician is called to the emergency department to perform a standard
12-Lead EKG on a patient. When the technician arrives, the patient is attached to a
5-lead monitor. What action should the technician take?-CORRECT
ANSWER Remove the electrodes for the 5-lead monitor before attaching the
electrodes for the 12-lead EKG
The sinus arrest is considered a medical emergency when the arrest reaches what
duration?-CORRECT ANSWER 6 seconds
, What is the best method for an EKG technician to use when removing hair from
electrode placement?-CORRECT ANSWER Clippers
What electrode is placed to the right of the patients sternum at the fourth
intercostal space?-CORRECT ANSWER Lead V1
What three leads are placed at the same horizontal level?-CORRECT
ANSWER Leads V4, V5, and V6
An interrupted baseline is most likely cased by______-CORRECT ANSWER
Lead corrosion
How should electrodes be explained to a pediatric patient?-CORRECT
ANSWER Stickers
How should a patient be prepared for a scheduled 12- lead EKG?-CORRECT
ANSWER Use an alcohol pad to cleanse the electrode placement sites
Why should a patient wear loose-fitting clothes while waring a Holter monitor?-
CORRECT ANSWER To reduce artifacts on the tracing
What action should be taken when performing an EKG for a patient that doesn't
speak the same language as the technician?-CORRECT ANSWER Having a
bilingual staff member translate
AND ANSWER | VERIFIED QUESTIONS
AND ANSWERS | UPDATED 2025/2026
|GRADED A+
What action should the technician instruct the patient to take if any electrodes
become loose during at-home use of an ambulatory monitor?-CORRECT
ANSWER Apply surgical tape to the electrodes to keep them in place
Which leads record activity of the inferior wall of the left ventricle?-CORRECT
ANSWER Leads III and AVF
What rhythm is characterized by absent P waves, wide QRS complexes, and a
ventricular rate between 20-40/mins?-CORRECT ANSWER Idioventricular
rhythm
What leads record electrical activity of the lateral wall of the left ventricle? -
CORRECT ANSWER Leads I, V6, AVL, and V5
In which locations should the EKG technician place the electrodes for a 3-lead
ambulatory monitor?-CORRECT ANSWER on the right shoulder, the left
shoulder, and the left abdomen
An EKG technician is performing a stress test for a patient. What changes indicate
that the patient is beginning to show signs of myocardial ischemia? -CORRECT
ANSWER Depressed ST segment
,What leads are bipolar?-CORRECT ANSWER Leads I, II, and III
What is the expected reference range for respiratory rate of a newborn patient? -
CORRECT ANSWER 30-49/min
An EKG technician is providing instructions for a patient who is scheduled for an
exercise stress test. What instructions should technician include?-CORRECT
ANSWER "You should avoid wearing shoes with high heels for this test."
An EKG technician is preparing a patient for an exercise stress test. What
statement should the technician make before this test?-CORRECT ANSWER
"This procedure requires informed consent."
What is the final step when applying a Holter monitor?-CORRECT ANSWER
Document the procedure in the patient's health record
An EKG technician prior to an exercise stress test. What statement by the patient
indicates an understanding of the preparation?-CORRECT ANSWER "I can
smoke the night before the exam."
A patient has a prescription to wear a Holter monitor for 24 hrs. What statement
made by the patient indicates an understanding of home care instructions?-
CORRECT ANSWER "I should record spontaneous symptoms unrelated to
an activity."
,After turning on the AED and attaching the AED to the patient, what should be
done next?-CORRECT ANSWER Stand clear from the patient and allow the
AED to analyze
In a healthy adult patient, what is the expected shape and direction of the P wave in
lead II?-CORRECT ANSWER rounded and upright
What statement should an EKG technician include when preparing a patient for an
upcoming exercise stress test?-CORRECT ANSWER "Refrain from caffeine,
smoking, or alcohol for at least 3 hours prior to the test."
What lead is created between the left arm and left leg?-CORRECT ANSWER
Lead III
What speed setting should the technician use for a standard 12-lead EKG for a
patient experiencing an accelerated junctional rhythm?-CORRECT ANSWER
25mm/second
(a patient experiencing accelerated junctional rhythm has a heart rate of 60-100
min)
An EKG technician is called to the emergency department to perform a standard
12-Lead EKG on a patient. When the technician arrives, the patient is attached to a
5-lead monitor. What action should the technician take?-CORRECT
ANSWER Remove the electrodes for the 5-lead monitor before attaching the
electrodes for the 12-lead EKG
The sinus arrest is considered a medical emergency when the arrest reaches what
duration?-CORRECT ANSWER 6 seconds
, What is the best method for an EKG technician to use when removing hair from
electrode placement?-CORRECT ANSWER Clippers
What electrode is placed to the right of the patients sternum at the fourth
intercostal space?-CORRECT ANSWER Lead V1
What three leads are placed at the same horizontal level?-CORRECT
ANSWER Leads V4, V5, and V6
An interrupted baseline is most likely cased by______-CORRECT ANSWER
Lead corrosion
How should electrodes be explained to a pediatric patient?-CORRECT
ANSWER Stickers
How should a patient be prepared for a scheduled 12- lead EKG?-CORRECT
ANSWER Use an alcohol pad to cleanse the electrode placement sites
Why should a patient wear loose-fitting clothes while waring a Holter monitor?-
CORRECT ANSWER To reduce artifacts on the tracing
What action should be taken when performing an EKG for a patient that doesn't
speak the same language as the technician?-CORRECT ANSWER Having a
bilingual staff member translate
