15 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Pulmonary Arterial ... to Left Shunt ... Defect ** • Atrial ... #Hypoxia #Differential
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
Diagnosis Algorithm ... Sulfhemoglobin Left-to-Right ... Arteriosus • Atrial ... Venous Return Right-to-Left ... Transposition of the Great Arteries
Degenerated Left Atrial Myxoma on Echocardiogram (PLAX)
A 68-year-old gentleman with progressive shortness of breath and cystic
Degenerated Left ... Atrial Myxoma on ... Final diagnosis ... #Degenerated #Atrial ... clinical #cardiology #pocus
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
variant • fetal ... anæmia • arterial ... hypoxemia - ... Differential #Causes ... #Diagnosis
Differentiating PAH from PVH - Echocardiography
Pulmonary Artery Hypertension (PAH):
 • RV size - Enlarged
 • LA
- Bows from right ... to left • RVOT ... Differentiating #PAH #PVH #Echocardiogram ... #comparison #diagnosis ... cardiology #pulmonary #arterial
Graphic representation of transthoracic echocardiographic parameters in the assessment of right ventricular pressure overload. A′ = peak late
diastolic (during atrial ... atrium; LV = left ... intraventricle septum ... cmls) #TTE #Echocardiogram ... Transthoracic #Diagnosis
Portopulmonary Hypertension
Presence of pulmonary arterial hypertension in a patient with portal hypertension
No other obvious causes (chronic
Presence of pulmonary arterial ... lung disease, left ... Transthoracic echocardiogram ... atrial pressure ... of ventricular septum
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Age-Adjusted Gradient • Right ... to Left Shunt ... Gradient #alveolar #arterial ... #hypoxemia #differential ... #diagnosis
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Atrium - Differential ... ASD or PFO with left ... #Atrium #RA #Differential ... #clinical #echocardiogram ... #s4c #pocus #bubble
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Libman Sacks) • Atrial ... Glomerulonephritis Septic ... Marantic (NTBE) Differential ... • Left sided > Right ... heart failure • Left