12/20/25, 11:53 AM CRAT Exam Flashcards | Quizlet
Science Medicine Cardiology
CRAT Exam 2026/2027 ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW!!
C
Terms in this set (63)
Chronotropic heart rate
Inotropic force of myocardial contractility
Dromotropic conduction velocity through the AV node
Systole contraction of chamber, blood is being ejected. Pressure rises
during systole.
Diastole rest, relaxation of chamber, chamber is allowed to fill.
Pressure falls during diastole.
Stroke Volume the amount of blood left ventricle pumps in each beat.
(mL/beat)
Cardiac output- definition The amount of blood pumped into the aorta each minute.
(units= mL/min)
Cardiac output- equation (HR) X (Stroke Volume) Avg. healthy adult= 4-8 L/min
Venous return amount of blood flowing into the right heart from the systemic
ciruclation
Blood Pressure- definition force exerted by the blood against the walls of the arteries as
the ventricles contract and relax
Blood pressure- equation (cardiac output) X (peripheral resistance) or you could put it
another way: (HR)(Stroke Volume)(Peripheral Resistance)
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, 12/20/25, 11:53 AM CRAT Exam Flashcards | Quizlet
An increase in Potassium or decrease in flaccid, limp, dilated, lower HR
Calcium cause the heart to be ____.
Excess Calcium can cause the heart to be spastic contractions.
_____.
Although about 70% of ventricular filling atrial kick
occurs passively, _______ contributes an
additional 10% to 30% of blood flow to
ventricular filling.
The area in the middle of the thoracic cavity Mediastinum
in which the heart lies is the:
The inferior surface of the heart is formed Right and left ventricles
by the
Receives blood from the superior and The right atrium
inferior vena cavae and the coronary sinus
The right ventricle Pumps unoxygenated blood into the pulmonary circulation
The ___ pericardium is the inner layer of the Visceral, epicardium
pericardium, which is also the outer layer of
the heart wall called the _.
When a ventricle relaxes in the normal A semilunar valve
heart, blood is prevented from flowing back
into it by
Which of the following conditions are Myocardial ischemia and myocardial injury
potentially reversible?
Which of the following is the innermost layer Endocardium
of the heart that lines its inner chambers,
valves and is continuous with the innermost
layers of the arteries, veins and capillaries of
the body?
Which of the following statements is A branch of the right coronary artery supplies the right atrium
CORRECT and the right ventricle
The main electrolytes that affect cardiac Sodium, potassium, chloride, calcium
function are
When an ECG machine is properly Ten millimeters
calibrated, a 1-millivolt (mV) electrical signal
will produce a deflection measuring exactly
_ __ tall.
https://quizlet.com/145789047/crat-exam-flash-cards/ 2/5
Science Medicine Cardiology
CRAT Exam 2026/2027 ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW!!
C
Terms in this set (63)
Chronotropic heart rate
Inotropic force of myocardial contractility
Dromotropic conduction velocity through the AV node
Systole contraction of chamber, blood is being ejected. Pressure rises
during systole.
Diastole rest, relaxation of chamber, chamber is allowed to fill.
Pressure falls during diastole.
Stroke Volume the amount of blood left ventricle pumps in each beat.
(mL/beat)
Cardiac output- definition The amount of blood pumped into the aorta each minute.
(units= mL/min)
Cardiac output- equation (HR) X (Stroke Volume) Avg. healthy adult= 4-8 L/min
Venous return amount of blood flowing into the right heart from the systemic
ciruclation
Blood Pressure- definition force exerted by the blood against the walls of the arteries as
the ventricles contract and relax
Blood pressure- equation (cardiac output) X (peripheral resistance) or you could put it
another way: (HR)(Stroke Volume)(Peripheral Resistance)
https://quizlet.com/145789047/crat-exam-flash-cards/ 1/5
, 12/20/25, 11:53 AM CRAT Exam Flashcards | Quizlet
An increase in Potassium or decrease in flaccid, limp, dilated, lower HR
Calcium cause the heart to be ____.
Excess Calcium can cause the heart to be spastic contractions.
_____.
Although about 70% of ventricular filling atrial kick
occurs passively, _______ contributes an
additional 10% to 30% of blood flow to
ventricular filling.
The area in the middle of the thoracic cavity Mediastinum
in which the heart lies is the:
The inferior surface of the heart is formed Right and left ventricles
by the
Receives blood from the superior and The right atrium
inferior vena cavae and the coronary sinus
The right ventricle Pumps unoxygenated blood into the pulmonary circulation
The ___ pericardium is the inner layer of the Visceral, epicardium
pericardium, which is also the outer layer of
the heart wall called the _.
When a ventricle relaxes in the normal A semilunar valve
heart, blood is prevented from flowing back
into it by
Which of the following conditions are Myocardial ischemia and myocardial injury
potentially reversible?
Which of the following is the innermost layer Endocardium
of the heart that lines its inner chambers,
valves and is continuous with the innermost
layers of the arteries, veins and capillaries of
the body?
Which of the following statements is A branch of the right coronary artery supplies the right atrium
CORRECT and the right ventricle
The main electrolytes that affect cardiac Sodium, potassium, chloride, calcium
function are
When an ECG machine is properly Ten millimeters
calibrated, a 1-millivolt (mV) electrical signal
will produce a deflection measuring exactly
_ __ tall.
https://quizlet.com/145789047/crat-exam-flash-cards/ 2/5
