Cardiac output , stroke volume ,heart rate

1. PRESENTED BY
AKASH CHAURASIA
ROLL NO -6
STUDENT OF B.Sc. NURSING 1ST SEMESTER
MADHAV PRASAD TRIPATHI MEDICAL COLLEGE,
SIDDHARTHNAGAR
DEPARTMENT OF PHYSIOLOGY
Seminar topic
CARDIAC OUTPUT

2. o INTRODUCTION
o FACTORS AFFECTING HEART RATIO(HR)
o FACTORS AFFECTING STROKE VOLUME(SV)
o MEASUREMENT OF CARDIAC OUTPUT

3. o Cardiac Output
o Cardiac Output is the volume of blood pumped each minute, and is
expressed by the following equation
o • CO+SV*HR
o Where:
o CO is cardiac output expressed in L/min(normal-5L/min)
o SV is stroke volume per beat
o HR is the number of beats per minute

5. o Hormones
o Fitness levels
o Age

6. o Heart size
o Fitness level
o Contractility
o Gender
o Duration of contraction

7. o Heart rate
when heart rate increases, cardiac output also increases.
any factor which changes the heart rate will also change cardiac
output
o Force of contraction of heart
o When the force of contraction of the heart increases, stroke volume
will increases. Therefore cardiac output will increase.
o Blood volume.
o When blood volume increases cardiac output increases.
o Venous return

8. o Methods based on Fick's principle
o Indicator or dye dilution method
o Thermodilution
o Inhalation of inert gases
o Physical methods
o Doppler echocardiography
o Ballistocardiography
o Cineradiographic technique