8 results
Correction formulas for Hypernatremia and Hyponatremia
#Management #Nephro #Hyponatremia #Hypernatremia #Correction #FreeWaterDeficit #Formulas #Androgue #Calculation
Correction formulas ... Hypernatremia #Correction ... FreeWaterDeficit #Formulas ... #Androgue #Calculation
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
Diagnosis #ABG #VBG #Differences ... #Versus #Comparison ... Studies #Conversion #Correlation
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
VBG #Laboratory #Correlation ... #Comparison #pH ... pCO2 #Diagnosis #Differences
Formula for Corrected Calcium in Hypoalbuminemia

Corrected Ca = Measured Ca2 + 0.8 x (4.0 - Albumin)

Example:
Formula for Corrected ... Hypoalbuminemia #formula ... #correction #diagnosis ... #calculation #albumin
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
Pressures and Calculations ... Reflects the pressure difference ... have shown good correlation ... RHC #PACatheter #calculations ... #pressures #equations
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
systematic error Correlation ... perfect positive correlation ... perfect negative correlation ... , 0 = no correlation ... #calculations #
Perform computations online at:
ScyMed.com
6th ED
ICU-card
«ICU, Formulas & Drugs»
HEMODYNAMIC PATTERNS
Condition
SAP
CVP

PAP PCWP

CO C(a-v)02 PVR

SVR
Hypovolemic shock
↓
↓
↓
↓
↓
↑
↑
↑
Cardiogenic shock
↓
1
↑
1

1
↑

Septic shock
↓
↓
↓
↓
↑
↓
↓
↓
Cardiac Tamponade
.
↑
↑
1
↓

→
↑
RV
ICU-card «ICU, Formulas ... Q-T interval correction ... values units equation ... Oxygen Content Difference
Hemoglobin A1c (glycated hemoglobin) reflects the average blood glucose concentration over the course of the RBC
The equation to ... exhibited direct correlations ... LDL and inverse correlation ... lifespan of RBCs in circulation