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Cardiac Output
CO
14
Physiology
Graduate
10/12/2011

Additional Physiology Flashcards

 


 

Cards

Term
Quantity of blood pumped into the aorta each minute by the heart is???
Definition
Cardiac Output
Term
Normal C.O.
Definition
5 L/m
Term
Maximum CO with severe exercise is??
Definition
25 L/m
Term
C.O. (increases or decreases) with age?
Definition
decreases
Term
What is the formula for C.O.?
Definition
HR x SV = CO
Term
Formula for CO is??
Definition
MAP- RAP/SVR = CO
Term
Explain Frank-Starling law
Definition
Increase venous return---> increase stretch ---> increased contractility and ultimately increased SV
Term
Bainbridge reflex
Definition

Stretch of the right atrium ---> decreased HR

 

 

(global distention of atrium --> decreased HR

Term
CO increased, SVR (inc./dec.)
Definition

Decreased

 

 

 

Inversely proportional

Term

Distribution of CO...

 

Brain

 

Liver

 

Kidney

Definition

Brain  12%

 

 

Liver 24%

 

 

Kidney20%

Term

CO is determined by???

 

(five)

Definition

Preload

Afterload

HR

Contractility

Ventricular compliance

Term

Cardiac factors that decrease CO...

 

 

(five)

Definition

CAD/MI

Severe valvular heart disease

Myocarditis

Cardiac Tamponade

Cardiac metabolic derangements (Ca, K levels)

Term

Peripheral factors that decrease CO...

 

(five)

Definition

1. Decreased blood volume

2. Acute venous dilation

3. Obstruction of large veins

4. Decreased skeletal muscle mass r/t aging --> decreased O2

5. Decreased metabolic rate (Clint and his hypothyroidism)

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