2360 results
Pulmonary Arterial Catheterization – Use and Interpretation:
-Pulmonary arterial catheterization (PAC) has never been shown to improve
Diagnosis #PACatheter #NormalValues ... #Differential # ... PCWP #Pressures #SVR
Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
Classification and Differential ... High CO / Low SVR ... Low CO / High SVR ... Low CO / High SVR ... Classification #Differential
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... Framework MAP = CO x SVR ... PAH • ↓ CO, ↑ SVR ... toxins • ↑ CO, ↓ SVR ... uw_IMresidency #Shock #Differential
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... PR elevation in aVR ... PR elevation in aVR ... ST elevation: Differential ... diagnosis #ekg #differential
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... Lead aVR can provide ... Differentiating VT from SVT ... EKG #ECG #Lead #AVR
Syncope in 3 Steps
1. Consider the 3 "S" Mimics: Seizure, low Sugar, Stroke (TIA)
2. Heart vs
Heart vs SVR Heart ... > fast or slow SVR ... other #Syncope #differential
Pressors and Inotropes

Norepinephrine
 • alpha1 > beta 1
 • Increase SVR > Inotropy
Vasopressin
 • V1
 •
1 • Increase SVR ... V1 • Increase SVR ... 1 • Increase SVR ... Inotropy > Increase SVR ... Inotropy, Decrease SVR
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
Shock - Differential ... High CO / Low SVR ... Low CO / High SVR ... Sophia_Hayes_MD #Shock #Differential
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
1500 d/s/cm5) (SVR ... -120 d/s/cm5) (PVR ... ml/beats/m2) (SVI ... [MAP – PCWP] x SVI ... mean PAp – CVP] x SVI
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... WPW), AVnRT (ie SVT ... Antidromic AVRT, SVT ... Any irregular SVT ... #Tachycardia #Differential