Cardiac Output Quiz

What is cardiac output?

• The amount of blood ejected by the heart in one minute

• The volume of blood pumped by each ventricle with each beat

• The number of beats per minute

• The resistance the ventricles must overcome to circulate the blood

What are the two factors used to calculate cardiac output?

• Heart rate and stroke volume

• Preload and afterload

• Contractility and venous return

• Sympathetic stimulation and parasympathetic activity

What is stroke volume?

• The amount of blood ejected by the heart in one minute

• The volume of blood pumped by each ventricle with each beat

• The number of beats per minute

• The resistance the ventricles must overcome to circulate the blood

What is the formula for cardiac output?

• Cardiac output = heart rate + stroke volume

• Cardiac output = heart rate - stroke volume

• Cardiac output = heart rate * stroke volume

• Cardiac output = heart rate / stroke volume

What is the normal stroke volume?

• 50 mils per beat

• 70 mils per beat

• 100 mils per beat

• 120 mils per beat

What is the normal heart rate?

• 50 beats per minute

• 75 beats per minute

• 100 beats per minute

• 120 beats per minute

What is the approximate cardiac output in liters per minute?

• 2 liters per minute

• 4 liters per minute

• 5 liters per minute

• 6 liters per minute

What are positive chronotropic factors?

• Factors that increase heart rate

• Factors that decrease heart rate

• Factors that increase stroke volume

• Factors that decrease stroke volume

What is preload?

• The amount of blood entering the ventricles during systole

• The amount of blood entering the ventricles during diastole

• The resistance the ventricles must overcome to circulate the blood

• The volume of blood pumped by each ventricle with each beat

What is afterload?

• The amount of blood ejected by the heart in one minute

• The volume of blood pumped by each ventricle with each beat

• The resistance the ventricles must overcome to circulate the blood

• The number of beats per minute