Cardiovascular Parameters

Question 1

Heart Rate (HR)

Answer 1

-the number of times a heart contracts (beats) in a given time period
-usually measures in minutes
*Resting: 60-100 bpm
*Normal max:200-220 for college aged students and athletes (limited by genetics, age, and training)

Question 2

Ejection Fraction (EF)

Answer 2

-REALATIVE amount in percent of blood pumped out from left ventricle at each beat
*EF=(SV/EDV) x100

Question 3

Stroke Volume (SV)

Answer 3

-an ABSOLUTE amount (in mLs) of blood pumped out of the left ventricle at each beat
*SV=End Dialostic Volume-End Systolic volume
-heavily infuluenced by total blood volume and venous blood return as well as body postition
*resting: 75 mL/beat
*normal mas: up to 150 mL/beat

Question 4

Cardiac output (Q)

Answer 4

-rate of blood flow through the heart per minute
*Q=HRxSV
-Determinant of blood pressure
*resting: 5 L/min
*normal max: 20-25 L/min

Question 5

What is cardiac output impacted by?

Answer 5

Stroke volume and Heart rate!!

Question 6

What are the two types of blood pressure?

Answer 6

Systolic and diaslostic

Question 7

Systolic Blood Pressure (SBP)

Answer 7

-pressure against artery valls during ventricular contraction (systole)
*resting:115-120 mm Hg
*normal mas: up to 350 mm Hg

Question 8

Dialostioc Blood pressure (DBP)

Answer 8

-during ventricular relaxation (dialostle) when arterial pressure falls
*resting: 75-80 mm Hg
*normal max: up to 250 mm Hg

Question 9

Mean Arterial Pressure (MAP)

Answer 9

-difference between venous blood flow and arterial blood flow

*there should always be a difference!!

Question 10

Total Peripheral Resistance (TPR)

Answer 10

a main regulator of systemic blood flow

*amount of pressure a heart has to work against (pressure in vessles)

Question 11

Rate Pressure Product (RPP)

Answer 11

-indicated Oxygen (O2) requirements of heart