4) CV Dynamics Formulas

Question 1

VO₂max Definition and Formula

Answer 1

Quantitatively measured max capacity for the aerobic resynthesis of ATP

• VO₂max = a-VO₂diff x Q

Question 2

Cardiac Output Definition and Formula

Answer 2

The amount of blood pumped by the heart in 1 minute

• Norm = 5-6L
• Highest in supine
• Q=HR x SV

Question 3

Stroke Volume Definition and Formula

Answer 3

The amount of blood pumped by the L ventricle per beat

• SV = EDV - ESV

Question 4

avO₂diff Definition

Answer 4

The difference btwn the O₂ content of arterial and mixed venous blood; The amount of O₂ extracted by muscle from the blood

Question 5

Total Peripheral Resistance Definition and Formula

Answer 5

Resistance in the peripheral circulation

• TPR = BP/CO

Question 6

BP Definition and Formula

Answer 6

The force that is exerted by the blood on the arterial wall

• BP = TPR x Q

Question 7

End Diasolic Volume Definition

Answer 7

The amount of blood left in the L ventricle after diastole

Question 8

End Systolic Volume

Answer 8

The amount of blood in the L ventricle after systole

Question 9

Ejection Fraction Definition and Formula

Answer 9

The percentage of blood that is ejected with each beat

• normal = >50%
• EF = SV/EDV

Question 10

Mean Arteriole Pressure Definition and Formula

Answer 10

The avg BP

• MAP = DBP + (.333(SBP - DBP))