57 results
Positive and Negative Likelihood Ratios Calculations
#Diagnosis #Likelihood #Ratios #LR #Calculations #Equations #Positive #Negative
Likelihood Ratios Calculations ... Likelihood #Ratios #LR #Calculations ... #Equations #Positive
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
and Epidemiology Equations ... #Epidemiology #Equations ... #calculations #
Sensitivity Calculation - Probability that a test correctly identifies those with the disease (true positive rate)

Sensitivity
#Epidemiology #Equations ... #calculations #
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate)

Specificity
#Epidemiology #Equations ... #calculations #
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
#Epidemiology #Equations ... #calculations #
Negative Predictive Value Calculation - Probability that someone with a negative test truly does not have
#Epidemiology #Equations ... #calculations #
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
Pressures and Calculations ... RHC #PACatheter #calculations ... #pressures #equations
To improve the usefulness of the serum creatinine concentration as a marker of kidney function, prediction
function, prediction equations ... Cockcroft-Gault equation ... Disease (MDRD) equation ... version of this equation ... , render these equations
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
- Hasselbalch Equation ... HCO3 Acid base Equation ... Harris Benedict Equation ... MediCalc® 7 Medical Calculator
Bleeding risk calculators - HAS-BLED (atrial fibrillation) and IMPROVE (VTE prophylaxis for inpatients)
Important notes:
 • No
Bleeding risk calculators ... #Risk #Scores #Calculators