3102 results
POCUS - Measuring Cardiac Output
1) Calculate LVOT Area
2) Calculate LVOT VTI
3) Calculate Cardiac Output

SV = (LVOT
) x (LVOT VTI) CO ... LVOT VTI) X HR CO ... Cardiac #Output #CO ... #Measurement #cardiology
Signs of Pulmonary Hypertension on Chest CT
 • Main PA is dilated and larger than the
Hypertension on Chest ... PHTN #ChestCT #CTChest ... #Radiology #cardiology
The arrows point to a subendocardial region with poor contrast enhancement due to ischemia. This is
Clinical #EM #IM #Cardiology ... #Radiology #CTChest
Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
Distributive: • High CO ... Cardiogenic: • Low CO ... Obstructive: • Low CO ... Hypovolemic: • Low CO
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Framework MAP = CO ... third-spacing • ↓ CO ... arrhythmia • ↓ CO ... PE, PAH • ↓ CO ... drugs/toxins • ↑ CO
Sinus Tachycardia - Differential Diagnosis Framework
Autonomic System:
 • Excess Stimulation: Nicotine, Caffeine, Sympathomimetics, Anticholinergics
 • Withdrawal:
Pheochromocytoma Inadequate CO ... Differential #Diagnosis #cardiology
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
Cardiac output (CO ... pressure – CVP]/CO ... mean PAp – PCWP]/CO ... /min/m2) (CI = CO ... CheatSheet #Waveforms #Cardiology
Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Anatomy Annotated on Chest ... lobes #Segments #Chest ... #CT #CTChest #pulmonary ... #clinical #radiology
Differentiating Pacemaker vs ICD on Chest XRay
 - Single Chamber PPM
 - Single Chamber ICD
 -
Pacemaker vs ICD on Chest ... ChestXRay #CXR #Radiology ... comparison #clinical #cardiology
Vasopressors and Inotropes - Pharmacology Summary
Vasopressors
Phenylephrine (alpha-1)
 • Increases BP, SVR
 • Risk of reflex bradycardia
Increases BP, SVR, CO ... Increases HR, SVR, CO ... contractility, CO ... • Increases CO