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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

Step 1 1.10.12

Key Equations and Relations

How do you calculate sensitivity? =TP/(TP+FN)
How do you calculate specificity? =TN(TN+FP)
How do you calculate positive predictive value? =TP/(TP+FP)
How do you calculate negative predictive value? =TN(TN+FN)
How do you calculate Relative risk? = [a/a+b]/[c/c+d]
How do you calculate attributable risk? =[a/a+b]-[c/c+d]
How do you calculate number needed to treat? 1/absolute risk reduction
How do you calculate number needed to harm? 1/attributable risk
How do you calculate Hardy Weinberg equilibrium? p^2 + 2pq+q^2= 1 p+q=1
How do you calculate the henderson Hasselbach equation for CO3 and CO2? pH=pKa+log[[HCO3-]/0.03 PCO2]]
How do you calculate volume of distribution? = amount of drug in body/plasma drug concentration
How do you calculate ? =rate of elimination of drug/plasma drug concentration
How do you calculate Half life? =0.7 x Vd/ CL (where Vd is volume of distorbution)
How do you calculate loading dose? LD=Cpx Vd/F
How do you calculate maintenance dose? MD= Cp x CL/F
How do you calculate Cardiac output? =rate of O2 consumption/ (arterial O2 content- venous O2 content)
How do you calculate cardiac output via SV? CO=SV x HR
How do you calculate mean arterial P? MAP=CO x total peripheral resistance. MAP= 1/3 systolic +2/3 distolic
How do you calculate dstroke volume? SV= End diastolic volume - end systolic volume
How do you calculate ejection fraction? EF=stroke volume/end diastolic volume x 100
How do you calculate resistance? =driving pressure/ flow= 8 (nu=viscosity) x length/pi r^4
How do you calculate Net filtration pressure? = [(Pc-Pi) - (pic-pii)]
How do you calculate glomerular filtration rate? GFR=U inulin cx V/P inulion= C inulin
How do you calculate glomerular filtration rate via osmotic forces? GFR= Kf[(Pgc-Pbs) - (piGC- piBS)]
How do you calculate effective renal plasma flow? ERPF= Upah x (V/Ppah) = Cpah
How do you calculate renal blood flow? RBF= RPF/(1-Hct)
how do you calculate the filtration fraction? FF=GFR/RPF
How do you calculate physiological dead space? Vd=Vt x [(PaCO2-PeCO2)/(PaCO2)]
Created by: tjs2123



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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