HOSA EKG EXAM 5 EXAM PREP QUESTIONS
AND ANSWERS 2026 PRACTICE SOLUTION
VERIFIED RESULTS
◉ Which leads record activity of the inferior wall of the left
ventricle?
Answer: Leads III and AVF
◉ What rhythm is characterized by absent P waves, wide QRS
complexes, and a ventricular rate between 20-40/mins?
Answer: Idioventricular rhythm
◉ What leads record electrical activity of the lateral wall of the left
ventricle?
Answer: Leads I, V6, AVL, and V5
◉ In which locations should the EKG technician place the electrodes
for a 3-lead ambulatory monitor?
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?
Answer: Depressed ST segment
◉ What leads are bipolar?
Answer: Leads I, II, and III
◉ What is the expected reference range for respiratory rate of a
newborn patient?
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?
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?
Answer: "This procedure requires informed consent."
◉ What is the final step when applying a Holter monitor?
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?
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?
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?
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?
Answer: rounded and upright
◉ What statement should an EKG technician include when
preparing a patient for an upcoming exercise stress test?
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?
Answer: Lead III
◉ What speed setting should the technician use for a standard 12-
lead EKG for a patient experiencing an accelerated junctional
rhythm?
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?
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?
Answer: 6 seconds
◉ What is the best method for an EKG technician to use when
removing hair from electrode placement?
Answer: Clippers
AND ANSWERS 2026 PRACTICE SOLUTION
VERIFIED RESULTS
◉ Which leads record activity of the inferior wall of the left
ventricle?
Answer: Leads III and AVF
◉ What rhythm is characterized by absent P waves, wide QRS
complexes, and a ventricular rate between 20-40/mins?
Answer: Idioventricular rhythm
◉ What leads record electrical activity of the lateral wall of the left
ventricle?
Answer: Leads I, V6, AVL, and V5
◉ In which locations should the EKG technician place the electrodes
for a 3-lead ambulatory monitor?
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?
Answer: Depressed ST segment
◉ What leads are bipolar?
Answer: Leads I, II, and III
◉ What is the expected reference range for respiratory rate of a
newborn patient?
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?
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?
Answer: "This procedure requires informed consent."
◉ What is the final step when applying a Holter monitor?
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?
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?
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?
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?
Answer: rounded and upright
◉ What statement should an EKG technician include when
preparing a patient for an upcoming exercise stress test?
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?
Answer: Lead III
◉ What speed setting should the technician use for a standard 12-
lead EKG for a patient experiencing an accelerated junctional
rhythm?
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?
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?
Answer: 6 seconds
◉ What is the best method for an EKG technician to use when
removing hair from electrode placement?
Answer: Clippers
