9 results
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
VBG vs ABG BOTTOM ... obtained than ABG ... #VBG #Differences ... #Versus #Comparison ... Studies #Conversion #Correlation
Correction formulas for Hypernatremia and Hyponatremia
#Management #Nephro #Hyponatremia #Hypernatremia #Correction #FreeWaterDeficit #Formulas #Androgue #Calculation
Correction formulas ... Hypernatremia #Correction ... FreeWaterDeficit #Formulas ... #Androgue #Calculation
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
ABG vs VBG: Arterial ... Blood Gases ABG ... serial exams #ABG ... #Correlation #Comparison ... pCO2 #Diagnosis #Differences
What is the difference between ischemic colitis and mesenteric ischemia?
A common misnomer. Mesenteric ischemia and ischemic
What is the difference ... initial treatment algorithms ... Sudden onset • Abd ... mesentericischemia #comparison ... #differences #diagnosis
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
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Fatigue and IBD Algorithm ... fatigue after correction ... of lab abn. ... modifications Algorithm ... #Fatigue #IBD #Algorithm
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 #
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
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
↓

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RV
ICU-card «ICU, Formulas ... Q-T interval correction ... Oxygen Content Difference