Paramedic Cardiology Exam Questions And
Answers (Guaranteed A+)
SA Node Rate - Answer60-100 BPM
AV Node Rate - Answer40-60 BPM
Bundle of His/Perkinjie Rate - Answer>40 BPM
Flow of blood through the heart - Answerfrom the body
superior and inferior vena cavas
right atrium
tricuspid valve
...
Paramedic Cardiology Exam Questions And
Answers (Guaranteed A+)
SA Node Rate - Answer✔60-100 BPM
AV Node Rate - Answer✔40-60 BPM
Bundle of His/Perkinjie Rate - Answer✔>40 BPM
Flow of blood through the heart - 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 - Answer✔Beats Harder
"P" Wave - Answer✔the P wave represents the electrical activity associated with the contraction
of the atria, or atrial depolarization
"P-R" Interval - 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 - 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 - 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 - 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.
"T" Wave - Answer✔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 - Answer✔duration of ventricular cardiac cycle (an indicator of ventricular rate)
Cardiac Output - Answer✔heart rate x stroke volume, Total blood volume pumped from the left
ventricle per minute. Can be increased by increasing heart rate or stroke volume. SV X HR= CO
Stroke Volume - Answer✔the volume of blood pumped out by a ventricle with each heartbeat
Pre-load - Answer✔Volume of blood in the ventricles at the end of diastole, immediately before
ventricular contraction.
After-load - Answer✔the pressure that must be exceeded before ejection of blood from the
ventricles can occur
Diastole - Answer✔relaxation phase of the cardiac cycle, the widening of the chambers of the
heart between two contractions when the chambers fill with blood
Systole - Answer✔the contraction of the chambers of the heart (especially the ventricles) to drive
blood into the aorta and pulmonary artery
Beta 1 - Answer✔located in the heart + ionotrphic and chronotrophic, also in kidneys renin
release in blood helping regulation of bp causing vasoconstriction
Beta 2 - Answer✔bronchodilation, uterine relaxation, glycogenolysis, vasodialation, skeletal
muscle contraction
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