Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

1 A Cardiac

1 A Cardiac- CO, Preload, Afterload

What is used to determine diastolic volume? EKG, EchoCardiogram, Xray? Using ultrasound (high frequency echocardiogram)
Stroke Volume = ___ - ___ =___? Stroke Volume = EDV–ESV = 135 – 65 = 70ml/beat
Cardiac Output-CO=___X___? CO=HRxSV
HR=___beats/min? HR= (60-100bpm)or average 72 beats/min
CO=___beats/min X ___ml/beat? C.O. = avg. 72 beats/min X 70ml/beat
Total CO=___L/min? CO = 5000ml/min or 5L/min
What is Preload? Blood in the heart before contraction(Preload=Left Ventricular End Diastolic Volume)or the amount of stretch of the ventricle.
When preload is increased what happens to stroke volume? It increases
What is Afterload? The pressure that the left ventricle must overcome to eject blood to the body
When afterload is increased what happens to stroke volume? It decreases. The heart is pumping against higher pressure so less blood is pumped out.
When afterload is decreased what happens to stroke volume? It increases.
Created by: pjc0023