67 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Algorithm by A-a Gradient ... Normal A-a Gradient ... compliance ↑ A-a Gradient ... (↑Shunting), ↓Perfusion ... pulmonary #Aa #Gradient
Severity of Aortic Stenosis in Adults 
Current ACC/AHA guidelines recommend cut-off values for Doppler-echocardiographic measurements of
Adults Current ACC ... 0.6 cm2/m2, mean gradient ... transvalvular gradient ... , inconsistent grading ... <1 cm2 with a gradient
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Approach to the A-a Gradient ... A-a gradient = ... PAO2 - PaO2 A-a gradient ... A-a Gradient ≤ ... Disease and more • Diffusion
Hydronephrosis Grading
Grade I - Pelviectasis 
Grade II - Caliectasis (Major Calyces)
Grade III - Caliectasis (Minor Calyces)
Grade
Hydronephrosis Grading ... Thinning - POCUS ... Hydronephrosis #Grading ... radiology #ultrasound #pocus
Loculated pericardial effusion seen in apical 4-chamber on echocardiogram

Dr. J. Christian Fox @jchristianfox

#Pericardial #Effusion #Loculated #complex
Loculated pericardial effusion ... #Pericardial #Effusion ... Echocardiogram #POCUS ... #Clinical #A4C
Tree analogy to classify severity of hydronephrosis.

Dr. Alan Chiem https://twitter.com/atchiem

#Diagnosis #POCUS #RenalUltrasound #Hydronephrosis #Tree #Analaogy #Severity
#Diagnosis #POCUS ... Analaogy #Severity #Grading
Common MRI Sequences - Basic MRI Brain Interpretation

 • T1 Sequence - T1 is for anatomy.
Gradient Sequence ... - Gradient imaging ... So gradient is our ... Blood is black on gradient ... remember this bc gradient
Ascites, pericardial effusion, and left pleural effusion on subcostal 4-chamber POCUS echocardiogram

Subcostal window in SLE patient.
Ascites, pericardial effusion ... and left pleural effusion ... subcostal 4-chamber POCUS ... #s4c #POCUS #echocardiogram ... #POCUS #clinical
Cardiac Rupture with Pericardial Effusion

Apical 4 chamber. Note larger right sided pericardial effusion with significant compression
with Pericardial Effusion ... sided pericardial effusion ... #pericardial #effusion ... MyocardialInfarction #AMI #POCUS ... ultrasound #Cardiology #A4c
Massive Pericardial Effusion on Echocardiogram

I recently saw the largest pericardial effusion of my life. Something out
Massive Pericardial Effusion ... largest pericardial effusion ... #Pericardial #Effusion ... Echocardiogram #POCUS ... #Clinical #S4C