CCMA EKG Questions, NHA CCMA
Chapter 6 Questions and Answers |
Latest Version | 2025/2026 | Correct &
Verified
What is the correct action if an EKG shows a flat line with properly placed electrodes?
✔✔Check connections, leads, and machine function before assuming patient issue
How long should each EKG strip be recorded for a standard 12-lead?
✔✔Typically 6–10 seconds per lead
What is the role of a medical assistant in EKG interpretation?
✔✔Identify normal and abnormal patterns, but final interpretation is by the provider
Which rhythm is characterized by wide, bizarre QRS complexes?
✔✔Ventricular tachycardia
How should the patient be positioned for a standard 12-lead EKG?
✔✔Supine with arms relaxed at sides
1
,Which type of artifact is caused by loose electrode connections?
✔✔Interrupted baseline
What is the significance of inverted T waves?
✔✔Possible ischemia or electrolyte imbalance
Which precordial lead is placed at the fourth intercostal space, left sternal border?
✔✔V2
What should a medical assistant do if the patient has a skin rash preventing electrode placement?
✔✔Select alternative sites and notify the provider
Why is it important to label each EKG lead correctly?
✔✔To ensure accurate interpretation and correlation with the heart’s electrical activity
Which rhythm is characterized by irregularly irregular QRS complexes with absent P waves?
✔✔Atrial fibrillation
2
,What is the correct action when a patient experiences chest pain during EKG recording?
✔✔Stop the procedure and notify the provider immediately
Which rhythm shows a consistent P wave before each QRS with normal PR intervals?
✔✔Normal sinus rhythm
What is the importance of maintaining proper lead color coding?
✔✔Prevents misinterpretation of the EKG tracing
What is the first step a medical assistant should take before performing an EKG?
✔✔Verify patient identity and explain the procedure
Where should limb electrodes be placed for a standard 12-lead EKG?
✔✔On the patient’s wrists and ankles
Why is it important for the patient to remain still during an EKG?
✔✔To prevent artifacts and ensure accurate readings
3
, Which lead is considered the ground electrode in a standard EKG?
✔✔Right leg
What is the correct placement for the V1 precordial lead?
✔✔Fourth intercostal space at the right sternal border
Why should the patient avoid talking during the EKG recording?
✔✔Talking can create electrical interference and artifacts
What does the P wave represent on an EKG tracing?
✔✔Atrial depolarization
What does the QRS complex indicate?
✔✔Ventricular depolarization
What does the T wave represent on an EKG tracing?
✔✔Ventricular repolarization
4
Chapter 6 Questions and Answers |
Latest Version | 2025/2026 | Correct &
Verified
What is the correct action if an EKG shows a flat line with properly placed electrodes?
✔✔Check connections, leads, and machine function before assuming patient issue
How long should each EKG strip be recorded for a standard 12-lead?
✔✔Typically 6–10 seconds per lead
What is the role of a medical assistant in EKG interpretation?
✔✔Identify normal and abnormal patterns, but final interpretation is by the provider
Which rhythm is characterized by wide, bizarre QRS complexes?
✔✔Ventricular tachycardia
How should the patient be positioned for a standard 12-lead EKG?
✔✔Supine with arms relaxed at sides
1
,Which type of artifact is caused by loose electrode connections?
✔✔Interrupted baseline
What is the significance of inverted T waves?
✔✔Possible ischemia or electrolyte imbalance
Which precordial lead is placed at the fourth intercostal space, left sternal border?
✔✔V2
What should a medical assistant do if the patient has a skin rash preventing electrode placement?
✔✔Select alternative sites and notify the provider
Why is it important to label each EKG lead correctly?
✔✔To ensure accurate interpretation and correlation with the heart’s electrical activity
Which rhythm is characterized by irregularly irregular QRS complexes with absent P waves?
✔✔Atrial fibrillation
2
,What is the correct action when a patient experiences chest pain during EKG recording?
✔✔Stop the procedure and notify the provider immediately
Which rhythm shows a consistent P wave before each QRS with normal PR intervals?
✔✔Normal sinus rhythm
What is the importance of maintaining proper lead color coding?
✔✔Prevents misinterpretation of the EKG tracing
What is the first step a medical assistant should take before performing an EKG?
✔✔Verify patient identity and explain the procedure
Where should limb electrodes be placed for a standard 12-lead EKG?
✔✔On the patient’s wrists and ankles
Why is it important for the patient to remain still during an EKG?
✔✔To prevent artifacts and ensure accurate readings
3
, Which lead is considered the ground electrode in a standard EKG?
✔✔Right leg
What is the correct placement for the V1 precordial lead?
✔✔Fourth intercostal space at the right sternal border
Why should the patient avoid talking during the EKG recording?
✔✔Talking can create electrical interference and artifacts
What does the P wave represent on an EKG tracing?
✔✔Atrial depolarization
What does the QRS complex indicate?
✔✔Ventricular depolarization
What does the T wave represent on an EKG tracing?
✔✔Ventricular repolarization
4
