Chapter 5 Key Term (EKG Technician Hartman, NRTC 2026) Exam
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Identify the primary purpose of an electrocardiograph during an EKG
procedure. -ANSWER- An electrocardiograph records the electrical
activity of the heart and produces a visual tracing for evaluation of
cardiac rate, rhythm, and conduction.
State the function of an electrode during EKG acquisition. -ANSWER- An
electrode detects electrical signals from the skin and transmits them to
the electrocardiograph for recording.
Differentiate an electrode from an EKG lead. -ANSWER- An electrode is
a physical sensor attached to the patient’s skin, while a lead represents
a specific electrical view of the heart created by the electrodes.
Identify the purpose of the standard 12-lead EKG. -ANSWER- A 12-lead
EKG provides multiple electrical views of the heart, allowing healthcare
professionals to assess different areas of cardiac electrical activity.
Recognize the importance of proper electrode placement before
beginning an EKG. -ANSWER- Correct placement ensures that the
tracing accurately represents the heart’s electrical activity. Incorrect
placement can produce misleading changes.
, State the standard number of limb electrodes used during a
conventional 12-lead EKG. -ANSWER- Four limb electrodes are used:
right arm, left arm, right leg, and left leg. They provide the electrical
information needed for the limb leads.
Identify the purpose of the right leg electrode during an EKG. -ANSWER-
The right leg electrode primarily functions as the electrical ground. It
helps reduce electrical interference and stabilize the tracing.
Identify the four standard limb electrode locations. -ANSWER- The
standard locations are the right arm, left arm, right leg, and left leg.
These electrodes generate the limb-lead views of the heart.
Differentiate the bipolar limb leads from the augmented limb leads. -
ANSWER- Bipolar limb leads I, II, and III compare electrical activity
between two limb electrodes. Augmented leads aVR, aVL, and aVF
provide additional views using one positive electrode in relation to the
combined electrical activity of the other electrodes.
State the three standard bipolar limb leads. -ANSWER- The three
bipolar limb leads are Lead I, Lead II, and Lead III. They compare
electrical potentials between different limb electrodes.
Actual Exam 2026 || Most Recent Exam 2026|2027 Actual Complete
Real Exam Questions And Correct Answers (Verified Answers) Already
Graded A+ | Guaranteed Success!! Newest Exam | Just Released!!
Identify the primary purpose of an electrocardiograph during an EKG
procedure. -ANSWER- An electrocardiograph records the electrical
activity of the heart and produces a visual tracing for evaluation of
cardiac rate, rhythm, and conduction.
State the function of an electrode during EKG acquisition. -ANSWER- An
electrode detects electrical signals from the skin and transmits them to
the electrocardiograph for recording.
Differentiate an electrode from an EKG lead. -ANSWER- An electrode is
a physical sensor attached to the patient’s skin, while a lead represents
a specific electrical view of the heart created by the electrodes.
Identify the purpose of the standard 12-lead EKG. -ANSWER- A 12-lead
EKG provides multiple electrical views of the heart, allowing healthcare
professionals to assess different areas of cardiac electrical activity.
Recognize the importance of proper electrode placement before
beginning an EKG. -ANSWER- Correct placement ensures that the
tracing accurately represents the heart’s electrical activity. Incorrect
placement can produce misleading changes.
, State the standard number of limb electrodes used during a
conventional 12-lead EKG. -ANSWER- Four limb electrodes are used:
right arm, left arm, right leg, and left leg. They provide the electrical
information needed for the limb leads.
Identify the purpose of the right leg electrode during an EKG. -ANSWER-
The right leg electrode primarily functions as the electrical ground. It
helps reduce electrical interference and stabilize the tracing.
Identify the four standard limb electrode locations. -ANSWER- The
standard locations are the right arm, left arm, right leg, and left leg.
These electrodes generate the limb-lead views of the heart.
Differentiate the bipolar limb leads from the augmented limb leads. -
ANSWER- Bipolar limb leads I, II, and III compare electrical activity
between two limb electrodes. Augmented leads aVR, aVL, and aVF
provide additional views using one positive electrode in relation to the
combined electrical activity of the other electrodes.
State the three standard bipolar limb leads. -ANSWER- The three
bipolar limb leads are Lead I, Lead II, and Lead III. They compare
electrical potentials between different limb electrodes.
