2731 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
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
High Output Heart Failure - Pathophysiology and Differential Diagnosis
Obesity - Systemic Vasodilation, Vasoactive Adipokines
Arteriovenous Fistula -
Anemia - Increased CO ... Differential #Diagnosis #cardiology
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
meanPAP-PCWP) / CO ... [(MAP - RAP) / CO ... (CPO) = (MAP x CO ... for measuring CO ... catheter #diagnosis #cardiology
Stroke Volume & Cardiac Output Measurement on POCUS
Accurately measure LVOT diameter:
1. Obtain PLAX 
2. Zoom to
around PWD trace CO ... Measurement #POCUS #cardiology
Heart Failure with Preserved Ejection Fraction: Management Principles

General Therapeutic Principles:
Reduce the congestive state 
 - Caution
apnea - Common co-morbidity ... #Management #Cardiology
AFib with RVR on Point of Care Ultrasound (POCUS) - PLAX

POCUS showing us why this pt's
180s, but low CO ... PLAX #clinical #cardiology
Quincke's Pulse in a patient with a normal echocardiogram (non-valvular)

A 70 y/o man presents with new
Sure enough, CO ... Fingernails #Nailbed #Cardiology
Benign T-wave Inversion (BTWI) vs. Wellens'
 • Usually in leads V3-V6 (vs. V2-V4 in Wellens'), but
distinct J-waves co-existing ... ECG #diagnosis #cardiology