NHA EKG CERTIFICATION
STUDY GUIDE EXAM WITH
CORRECT ANSWERS 2025
SA Node ( correct answers ) What is the heart's primary pacemaker?
Occlusion ( correct answers )What is a more medically correct term for the
clotting of an artery?
P Wave ( correct answers ) When the Atria depolarize (or contract), what
is shown on the EKG tracing?
Heart to the Right Arm
( correct answers ) aVR picks up from the center of the
to the .
(Add "to the" in your answer.)
Sinus Arrhythmia ( correct answers ) An irregular heartbeat that is
common among children is called .
1 mm ( correct answers ) 1 small box on an EKG strip denotes 0.04
seconds of time. How long is this represented in millimeters?
Right Arm to the Left Arm ( correct answers ) Lead I
picks up from the to the
. (Add "to the" in your answer.)
Cardiac Output ( correct answers ) What is the term used to described the
amount of blood pumped by the heart per minute?
Standard Leads ( correct answers ) Leads I through III are collectively
known as? Right Arm to the Left Leg ( correct answers ) Lead II
picks up from the to the
. (Add "to the" in your answer.)
Precordial Leads ( correct answers ) Leads V1 through V6 are collectively
known as (Hint: Chest)
Aorta ( correct answers ) What is the main artery in the
arterial system? (Hint: It carries oxygenated blood to the heart
and other parts of the body.)
Heart to the Left Arm ( correct answers )
aVL picks up from the center of the
GRADED
to the .
(Add "to the" in your answer.)
A+
Augmented Leads ( correct answers ) aVR, aVL, and aVF are collectively
known as?
, Left Arm to the Left Leg ( correct answers ) Lead
III picks up from the to the
. (Add "to the" in your answer.)
Grounding ( correct answers ) Leg electrodes are only used for?
Heart to the Left Leg ( correct answers )
aVF picks up from the center of the to the .
(Add "to the" in your answer.)
Superior Vena Cava ( correct answers ) What is the main vein in the
venous system? (Hint: It carries deoxygenated blood from the lungs to the
heart's right atrium.)
AV Node ( correct answers ) When the heart is in a Systolic State, what
pacemaker releases an electrical impulse?
V4 and V6 ( correct answers ) V5, located on the anterior axillary line
(AAL), should be placed halfway between which two leads?
Bicuspid Valve ( correct answers ) The
Mitral Valve is also known as the .
QRS Complex ( correct answers ) When the Ventricles depolarize (or
contract), what is shown on the EKG tracing?
Systolic ( correct answers ) When using a Sphygmomanometer (Blood
Pressure Cuff) to measure blood pressure, the FIRST audible thump when
listening to the brachial artery with a Stethoscope denotes what kind of
pressure?
Second ( correct answers ) The Angle of Louis provides the LOCATION
for which intercostal space? (Write out the number)
Ischemia ( correct answers ) When clotting reduces oxygen supply to a
region of the heart it is known as .
PR Segment ( correct answers ) When the Atria repolarize (or are at
rest), what is shown on the EKG tracing?
False ( correct answers ) True or False?
You should stop a stress test because of a change of heart rhythm.
Aortic Valve ( correct answers ) What is missing in this outline of
Pulmonary Circulation?
1) RA (Right Atrium)
2) Tricuspid Valve
3) RV (Right Ventricle)
GRADED
4) Pulmonary Valve
A+
STUDY GUIDE EXAM WITH
CORRECT ANSWERS 2025
SA Node ( correct answers ) What is the heart's primary pacemaker?
Occlusion ( correct answers )What is a more medically correct term for the
clotting of an artery?
P Wave ( correct answers ) When the Atria depolarize (or contract), what
is shown on the EKG tracing?
Heart to the Right Arm
( correct answers ) aVR picks up from the center of the
to the .
(Add "to the" in your answer.)
Sinus Arrhythmia ( correct answers ) An irregular heartbeat that is
common among children is called .
1 mm ( correct answers ) 1 small box on an EKG strip denotes 0.04
seconds of time. How long is this represented in millimeters?
Right Arm to the Left Arm ( correct answers ) Lead I
picks up from the to the
. (Add "to the" in your answer.)
Cardiac Output ( correct answers ) What is the term used to described the
amount of blood pumped by the heart per minute?
Standard Leads ( correct answers ) Leads I through III are collectively
known as? Right Arm to the Left Leg ( correct answers ) Lead II
picks up from the to the
. (Add "to the" in your answer.)
Precordial Leads ( correct answers ) Leads V1 through V6 are collectively
known as (Hint: Chest)
Aorta ( correct answers ) What is the main artery in the
arterial system? (Hint: It carries oxygenated blood to the heart
and other parts of the body.)
Heart to the Left Arm ( correct answers )
aVL picks up from the center of the
GRADED
to the .
(Add "to the" in your answer.)
A+
Augmented Leads ( correct answers ) aVR, aVL, and aVF are collectively
known as?
, Left Arm to the Left Leg ( correct answers ) Lead
III picks up from the to the
. (Add "to the" in your answer.)
Grounding ( correct answers ) Leg electrodes are only used for?
Heart to the Left Leg ( correct answers )
aVF picks up from the center of the to the .
(Add "to the" in your answer.)
Superior Vena Cava ( correct answers ) What is the main vein in the
venous system? (Hint: It carries deoxygenated blood from the lungs to the
heart's right atrium.)
AV Node ( correct answers ) When the heart is in a Systolic State, what
pacemaker releases an electrical impulse?
V4 and V6 ( correct answers ) V5, located on the anterior axillary line
(AAL), should be placed halfway between which two leads?
Bicuspid Valve ( correct answers ) The
Mitral Valve is also known as the .
QRS Complex ( correct answers ) When the Ventricles depolarize (or
contract), what is shown on the EKG tracing?
Systolic ( correct answers ) When using a Sphygmomanometer (Blood
Pressure Cuff) to measure blood pressure, the FIRST audible thump when
listening to the brachial artery with a Stethoscope denotes what kind of
pressure?
Second ( correct answers ) The Angle of Louis provides the LOCATION
for which intercostal space? (Write out the number)
Ischemia ( correct answers ) When clotting reduces oxygen supply to a
region of the heart it is known as .
PR Segment ( correct answers ) When the Atria repolarize (or are at
rest), what is shown on the EKG tracing?
False ( correct answers ) True or False?
You should stop a stress test because of a change of heart rhythm.
Aortic Valve ( correct answers ) What is missing in this outline of
Pulmonary Circulation?
1) RA (Right Atrium)
2) Tricuspid Valve
3) RV (Right Ventricle)
GRADED
4) Pulmonary Valve
A+
