Paramedic Cardiology || All Accurately Answered.
SA Node Rate correct answers 60-100 BPM
AV Node Rate correct answers 40-60 BPM
Bundle of His/Perkinjie Rate correct answers >40 BPM
Flow of blood through the heart correct answers 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 answers Beats Harder
Chronotropic correct answers Beats Faster
, Dromotropic correct answers Improved contractility
"P" Wave correct answers the P wave represents the electrical activity associated with the
contraction of the atria, or atrial depolarization
"P-R" Interval correct answers 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 answers 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 answers 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 answers 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.
"T" Wave correct answers the T wave represents the electrical recovery of the ventricles, or
ventricle repolarization. the muscle cells are recovering in preparation for another impulse
"R-R" Interval correct answers duration of ventricular cardiac cycle (an indicator of ventricular
rate)
SA Node Rate correct answers 60-100 BPM
AV Node Rate correct answers 40-60 BPM
Bundle of His/Perkinjie Rate correct answers >40 BPM
Flow of blood through the heart correct answers 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 answers Beats Harder
Chronotropic correct answers Beats Faster
, Dromotropic correct answers Improved contractility
"P" Wave correct answers the P wave represents the electrical activity associated with the
contraction of the atria, or atrial depolarization
"P-R" Interval correct answers 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 answers 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 answers 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 answers 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.
"T" Wave correct answers the T wave represents the electrical recovery of the ventricles, or
ventricle repolarization. the muscle cells are recovering in preparation for another impulse
"R-R" Interval correct answers duration of ventricular cardiac cycle (an indicator of ventricular
rate)
