139 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 ... Alveolar • V/Q Mismatch ... Algorithm #pulmonary #Aa ... #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 = ... A-a Gradient ≤ ... and more • V/Q Mismatch ... UnremarkableLab #AA
Severity of Aortic Stenosis in Adults 
Current ACC/AHA guidelines recommend cut-off values for Doppler-echocardiographic measurements of
0.6 cm2/m2, mean gradient ... transvalvular gradient ... , inconsistent grading ... <1 cm2 with a gradient
Amyloidosis Types - Comparison Table
Proteins depositing where they shouldn't
 • AL
 • TTR
 • AA

Julia Gips,
AL • TTR • AA
Aplastic Anemia Summary

 • Definition
 • Pathophysiology
 • DDx: AA vs Hypocellular MDS
 • Expectation
 •
Pathophysiology • DDx: AA
Ascites Differential Diagnosis Table - Serum Ascites Albumin Gradient (SAAG)

SAAG ≥ 1.1:
 • Cirrhosis
 • Portal
Ascites Albumin Gradient ... Serum #Albumin #Gradient
Aortic Stenosis Grading on echocardiography
The cut-offs for grading can be found in table 1. Discrepancies are
Aortic Stenosis Grading ... The cut-offs for grading ... 4.0 m/s and mean gradient
V/Q Mismatch Physiology

by Dr. Lizzy Hastie @LizzyHastie

#VQMismatch #pathophysiology #diagnosis #pulmonary
V/Q Mismatch Physiology
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
common than VIQ mismatch ... PERFUSION (V/Q) MISMATCH ... gravity-dependent gradients
Diagnosis of ascites according to the serum ascites albumin gradient (SAAG)
SAAG ≥ 1.1:
 - Ascitic protein
ascites albumin gradient ... ascites #albumin #gradient