BayCare EKG Test | Actual 2025/2026 Questions
and Verified Answers | Graded A+
BayCare EKG/ECG Competency Test | The most updated 2025/2026 edition featuring
authentic exam-style questions with 100% verified answers. Content covers essential EKG
interpretation domains including cardiac anatomy & physiology, rhythm recognition, lead
placement, arrhythmia identification, myocardial infarction patterns, conduction abnormalities,
and nursing/clinical interventions for patient safety.
Overview
This BayCare EKG Test package provides accurate and real-world exam questions verified by
clinical experts. Each question reinforces rhythm analysis, critical care decision-making, and
correct interpretation of EKG findings. Graded A+ for precision and updated to reflect the latest
standards in cardiac monitoring and acute care practice.
Answer Format
All correct answers are presented in bold green with concise rationales explaining the rhythm
characteristics, underlying pathophysiology, and clinical significance. This ensures learners
build strong EKG interpretation skills and are fully exam-ready.
Cardiac Anatomy & Physiology
Question 1
Which coronary artery typically supplies the inferior wall of the left ventricle and may show
changes in leads II, III, and aVF during an EKG?
A) Left anterior descending artery
B) Left circumflex artery
C) Right coronary artery
D) Left main coronary artery
Answer: C) Right coronary artery Rationale: The right coronary artery (RCA) typically
supplies the inferior wall of the left ventricle in most patients. EKG changes in inferior MI are
characterized by ST elevations in leads II, III, and aVF, reflecting RCA occlusion.
Question 2
The normal electrical conduction pathway through the heart follows which sequence?
, A) SA node → AV node → Bundle of His → Bundle branches → Purkinje fibers
B) AV node → SA node → Bundle of His → Bundle branches → Purkinje fibers
C) SA node → Bundle of His → AV node → Bundle branches → Purkinje fibers
D) SA node → AV node → Bundle branches → Bundle of His → Purkinje fibers
Answer: A) SA node → AV node → Bundle of His → Bundle branches → Purkinje
fibers Rationale: Normal cardiac conduction originates in the SA node (pacemaker), travels
to the AV node (delay), then through the Bundle of His, right and left bundle branches, and
finally Purkinje fibers for ventricular depolarization.
Question 3
Which EKG lead best represents the inferior wall of the heart?
A) Lead I
B) Lead aVL
C) Lead II
D) Lead aVR
Answer: C) Lead II Rationale: Lead II is one of the inferior leads (along with III and aVF)
that best visualizes the inferior wall of the heart. It's particularly useful for monitoring inferior
wall ischemia and AV node conduction.
Lead Placement & Technical Aspects
Question 4
Where should the V1 electrode be placed for proper 12-lead EKG acquisition?
A) 4th intercostal space, right sternal border
B) 5th intercostal space, left midclavicular line
C) 2nd intercostal space, left sternal border
D) 5th intercostal space, anterior axillary line
Answer: A) 4th intercostal space, right sternal border Rationale: V1 is placed at the 4th
intercostal space at the right sternal border. This position is crucial for detecting right
ventricular abnormalities and distinguishing between right and left bundle branch blocks.
Question 5
Artifact appearing as irregular, rapid baseline oscillations on the EKG tracing most likely
indicates:
A) Patient movement
B) Electrical interference (60-cycle interference)
C) Loose electrode connection
D) Wandering baseline
and Verified Answers | Graded A+
BayCare EKG/ECG Competency Test | The most updated 2025/2026 edition featuring
authentic exam-style questions with 100% verified answers. Content covers essential EKG
interpretation domains including cardiac anatomy & physiology, rhythm recognition, lead
placement, arrhythmia identification, myocardial infarction patterns, conduction abnormalities,
and nursing/clinical interventions for patient safety.
Overview
This BayCare EKG Test package provides accurate and real-world exam questions verified by
clinical experts. Each question reinforces rhythm analysis, critical care decision-making, and
correct interpretation of EKG findings. Graded A+ for precision and updated to reflect the latest
standards in cardiac monitoring and acute care practice.
Answer Format
All correct answers are presented in bold green with concise rationales explaining the rhythm
characteristics, underlying pathophysiology, and clinical significance. This ensures learners
build strong EKG interpretation skills and are fully exam-ready.
Cardiac Anatomy & Physiology
Question 1
Which coronary artery typically supplies the inferior wall of the left ventricle and may show
changes in leads II, III, and aVF during an EKG?
A) Left anterior descending artery
B) Left circumflex artery
C) Right coronary artery
D) Left main coronary artery
Answer: C) Right coronary artery Rationale: The right coronary artery (RCA) typically
supplies the inferior wall of the left ventricle in most patients. EKG changes in inferior MI are
characterized by ST elevations in leads II, III, and aVF, reflecting RCA occlusion.
Question 2
The normal electrical conduction pathway through the heart follows which sequence?
, A) SA node → AV node → Bundle of His → Bundle branches → Purkinje fibers
B) AV node → SA node → Bundle of His → Bundle branches → Purkinje fibers
C) SA node → Bundle of His → AV node → Bundle branches → Purkinje fibers
D) SA node → AV node → Bundle branches → Bundle of His → Purkinje fibers
Answer: A) SA node → AV node → Bundle of His → Bundle branches → Purkinje
fibers Rationale: Normal cardiac conduction originates in the SA node (pacemaker), travels
to the AV node (delay), then through the Bundle of His, right and left bundle branches, and
finally Purkinje fibers for ventricular depolarization.
Question 3
Which EKG lead best represents the inferior wall of the heart?
A) Lead I
B) Lead aVL
C) Lead II
D) Lead aVR
Answer: C) Lead II Rationale: Lead II is one of the inferior leads (along with III and aVF)
that best visualizes the inferior wall of the heart. It's particularly useful for monitoring inferior
wall ischemia and AV node conduction.
Lead Placement & Technical Aspects
Question 4
Where should the V1 electrode be placed for proper 12-lead EKG acquisition?
A) 4th intercostal space, right sternal border
B) 5th intercostal space, left midclavicular line
C) 2nd intercostal space, left sternal border
D) 5th intercostal space, anterior axillary line
Answer: A) 4th intercostal space, right sternal border Rationale: V1 is placed at the 4th
intercostal space at the right sternal border. This position is crucial for detecting right
ventricular abnormalities and distinguishing between right and left bundle branch blocks.
Question 5
Artifact appearing as irregular, rapid baseline oscillations on the EKG tracing most likely
indicates:
A) Patient movement
B) Electrical interference (60-cycle interference)
C) Loose electrode connection
D) Wandering baseline
