Paramedic Cardiology questions and answers
2025\2026 A+ Grade
SA Node Rate
- correct answer 60-100 BPM
AV Node Rate
- correct answer 40-60 BPM
Bundle of His/Perkinjie Rate
- correct answer >40 BPM
Flow of blood through the heart
- correct answer from the body
superior and inferior vena cavas
right atrium
tricuspid valve
right ventricle
semilunar valve
pulmonary artery
lungs
pulmonary veins
left atrium
bicuspid valve
left ventricle
semilunar valve
aorta
to the body
, Inotropic
- correct answer Beats Harder
Chronotropic
- correct answer Beats Faster
Dromotropic
- correct answer Improved contractility
"P" Wave
- correct answer the P wave represents the electrical activity associated with the contraction of the
atria, or atrial depolarization
"P-R" Interval
- correct answer Time required for conduction from the SA node to AV node. The time between atrial
and ventricular depolarization. This is normally 0.12 to 0.2 seconds.
"Q" Wave
- correct answer The first portion of the QRS complex that is seen with a downward deflection and is
usually not obvious on the EKG of the normal heart. Often the first portion of the deflection is positive,
signifying no Q wave. This is the beginning of ventricular depolarization.
"QRS" Complex
- correct answer Represents ventricle depolarization. The QRS Interval is measured from the start of the
Q wave or from the beginning of the R wave if no Q wave is present. If no Q wave is present, a normal
QRS interval should be less than 0.12 seconds in all leads.
"ST" Segment
- correct answer Indicates that ventricle depolarization is complete and that repolarization is about to
begin. Also called early ventricle repolarization. The ST Segment is measured from the end of the QRS to
the beginning of the T wave, and represents a portion of ventricular repolarization. The normal segment
is usually flat, or isoelectric. The absolute measurement of this segment is not as clinically important as
is the configuration, whether depressed or elevated.
2025\2026 A+ Grade
SA Node Rate
- correct answer 60-100 BPM
AV Node Rate
- correct answer 40-60 BPM
Bundle of His/Perkinjie Rate
- correct answer >40 BPM
Flow of blood through the heart
- correct answer from the body
superior and inferior vena cavas
right atrium
tricuspid valve
right ventricle
semilunar valve
pulmonary artery
lungs
pulmonary veins
left atrium
bicuspid valve
left ventricle
semilunar valve
aorta
to the body
, Inotropic
- correct answer Beats Harder
Chronotropic
- correct answer Beats Faster
Dromotropic
- correct answer Improved contractility
"P" Wave
- correct answer the P wave represents the electrical activity associated with the contraction of the
atria, or atrial depolarization
"P-R" Interval
- correct answer Time required for conduction from the SA node to AV node. The time between atrial
and ventricular depolarization. This is normally 0.12 to 0.2 seconds.
"Q" Wave
- correct answer The first portion of the QRS complex that is seen with a downward deflection and is
usually not obvious on the EKG of the normal heart. Often the first portion of the deflection is positive,
signifying no Q wave. This is the beginning of ventricular depolarization.
"QRS" Complex
- correct answer Represents ventricle depolarization. The QRS Interval is measured from the start of the
Q wave or from the beginning of the R wave if no Q wave is present. If no Q wave is present, a normal
QRS interval should be less than 0.12 seconds in all leads.
"ST" Segment
- correct answer Indicates that ventricle depolarization is complete and that repolarization is about to
begin. Also called early ventricle repolarization. The ST Segment is measured from the end of the QRS to
the beginning of the T wave, and represents a portion of ventricular repolarization. The normal segment
is usually flat, or isoelectric. The absolute measurement of this segment is not as clinically important as
is the configuration, whether depressed or elevated.
