Cardiac Calculations

What is the heart rate of a person with an average stroke volume of 50cm³ and a cardiac output of 5000 cm³ min^-1

What is the heart rate of a person with an average stroke volume of 20cm³ and a cardiac output of 6000 cm³ min^-1

Cardiac output is the amount of blood leaving the heart every minute. What are the units of cardiac output?

• cm³ min-1

• beats per minute (bpm)

• cm³

Heart rate is how many times the heart pumps in 1 minute. What are the units of heart rate?

• cm³ min-1

• beats per minute (bpm)

• cm³

Stroke volume is the amount of blood that can be moved by one ventricle when it contracts. What are the units of stroke volume?

• cm³ min-1

• beats per minute (bpm)

• cm³

Which description best matches with stroke volume?

• The amount of blood leaving the heart every minute

• How many times the heart pumps in 1 minute

• The amount of blood moved by one ventricle when it contracts.

Which description best matches with heart rate?

• The amount of blood leaving the heart every minute

• How many times the heart pumps in 1 minute

• The amount of blood moved by one ventricle when it contracts.

Which description best matches with cardiac output?

• The amount of blood leaving the heart every minute

• How many times the heart pumps in 1 minute

• The amount of blood moved by one ventricle when it contracts.

A person has an average heart rate of 65 bpm and a stroke volume of 60cm³. Calculate their cardiac output

A person has an average heart rate of 70 bpm and a stroke volume of 50cm³. Calculate their cardiac output