MA400 Exam #2 2025 Questions and
Answers
Electrocardiography is used to:
a) detect a dysrhythmia.
b) evaluate chest pain or shortness of breath.
c) detect the presence of cardiac ischemia.
d) determine the presence of hypertrophy of the heart.
e) all are correct. - ANSWER-all are correct.
What is a cardiac cycle?
a) Contraction of the atria
b) One complete heartbeat
c) Relaxation of the entire heart
d) Contraction of the ventricles - ANSWER-one complete heartbeat
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,A device placed on the skin that picks up electrical impulses released by the heart is
known as:
a) a lead wire.
b) an amplifier.
c) an electrode.
d) an electrolyte. - ANSWER-an electrode.
Leads 1, 2, and 3 are the:
a) bipolar leads.
b) chest leads.
c) augmented leads.
d) precordial leads. - ANSWER-bipolar leads
The aVR, aVL, and aV are known as the:
a) standard leads.
b) chest leads.
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, c) augmented leads.
d) bipolar leads. - ANSWER-augmented leads.
Chest lead V2 is located at the:
a) fourth intercostal space at the left margin of the sternum.
b) fifth intercostal space at the junction of the left midclavicular line.
c) fifth intercostal space at the left margin of the sternum.
d) fourth intercostal space at the right margin of the sternum. - ANSWER-fourth
intercostal space at the left margin of the sternum.
Where is chest lead V5 located?
a) Midway between V4 and V6
b) At the fifth intercostal space at the junction of the left midclavicular line
c) At the horizontal level of V4 at the left anterior axillary line
d) At the horizontal level of V4 at the left midaxillary line - ANSWER-At the
horizontal level of V4 at the left anterior axillary line
All of the following are guidelines for patient preparation for an ECG except
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Answers
Electrocardiography is used to:
a) detect a dysrhythmia.
b) evaluate chest pain or shortness of breath.
c) detect the presence of cardiac ischemia.
d) determine the presence of hypertrophy of the heart.
e) all are correct. - ANSWER-all are correct.
What is a cardiac cycle?
a) Contraction of the atria
b) One complete heartbeat
c) Relaxation of the entire heart
d) Contraction of the ventricles - ANSWER-one complete heartbeat
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,A device placed on the skin that picks up electrical impulses released by the heart is
known as:
a) a lead wire.
b) an amplifier.
c) an electrode.
d) an electrolyte. - ANSWER-an electrode.
Leads 1, 2, and 3 are the:
a) bipolar leads.
b) chest leads.
c) augmented leads.
d) precordial leads. - ANSWER-bipolar leads
The aVR, aVL, and aV are known as the:
a) standard leads.
b) chest leads.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, c) augmented leads.
d) bipolar leads. - ANSWER-augmented leads.
Chest lead V2 is located at the:
a) fourth intercostal space at the left margin of the sternum.
b) fifth intercostal space at the junction of the left midclavicular line.
c) fifth intercostal space at the left margin of the sternum.
d) fourth intercostal space at the right margin of the sternum. - ANSWER-fourth
intercostal space at the left margin of the sternum.
Where is chest lead V5 located?
a) Midway between V4 and V6
b) At the fifth intercostal space at the junction of the left midclavicular line
c) At the horizontal level of V4 at the left anterior axillary line
d) At the horizontal level of V4 at the left midaxillary line - ANSWER-At the
horizontal level of V4 at the left anterior axillary line
All of the following are guidelines for patient preparation for an ECG except
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