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Simplified Vasopressors and Inotropes Comparison Chart
MAP = CO x SVR
Dobutamine - Norepinephrine - Epinephrine - Phenylephrine
Chart MAP = CO x SVR ... comparison #table #criticalcare
Pressors and Inotropes

Norepinephrine
 • alpha1 > beta 1
 • Increase SVR > Inotropy
Vasopressin
 • V1
 •
1 • Increase SVR ... V1 • Increase SVR ... 1 • Increase SVR ... Inotropy, Decrease SVR ... Pressors #Inotropes #criticalcare
Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
High CO / Low SVR ... Low CO / High SVR ... Low CO / High SVR ... Low CO / High SVR ... Diagnosis #Types #criticalcare
Vasopressors and Inotropes - Comparison Table
Activity: Alpha-1, Beta-1, Dopamine, SVR, HR, CO, BP
Phenylephrine
Vasopressin
Norepinephrine
Epinephrine
Dopamine
Dobutamine
Isoproterenol
Milrinone

- Dr. Eric Strong
Beta-1, Dopamine, SVR ... #pharmacology #criticalcare
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Pericarditis: PR ... elevation in aVR ... • PR elevation ... elevation in aVR
DO2 Equation in Shock = Oxygen Delivery
DO2 = CO x (1.39 x [Hb] x SaO2 +(0.003xPaO2))
DO2
oxygen delivery (ml per ... output (litres per ... haemoglobin: 1.39 ml per ... concentration (grams per ... Oxygen #Delivery #criticalcare
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Framework MAP = CO x SVR ... arrhythmia • ↓ CO, ↑ SVR ... PAH • ↓ CO, ↑ SVR ... toxins • ↑ CO, ↓ SVR ... table #comparison #criticalcare
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
depression in aVR ... Elevation of PR ... segment in aVR and ... depression of PR ... normalization of ST and PR
Checklist for the Echocardiographic Evaluation of Pulmonary Hypertension
 • Record estimated PASP
 • Evaluate RV size
signs of elevated PVR ... Differentiate PAH from PVH
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
High CO / Low SVR ... Low CO / High SVR ... Differential #Diagnosis #criticalcare