3147 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary ... , Atelectasis, Pulmonary ... Diffusion Defect: Pulmonary ... Hypoxia #hypoxemia #differential
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Normal A-a Gradient ... Hypoxemia #Hypoxia #Differential ... Diagnosis #Algorithm #pulmonary ... #Aa #Gradient
Hepatopulmonary Syndrome (HPS) 

HPS-differential diagnosis:
1. Pulmonary vasculature
2. Diseases of the lung parenchyma
3. Pleura and diaphragm

HPS-diagnosis:
1. Patients
(HPS) HPS-differential ... Pulmonary vasculature ... Alveolar-arterial oxygen gradient ... HPS #hepatology #pulmonary
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... lung diseases, pulmonary ... gravity-dependent gradients ... Failure #hypoxia #Differential ... #Diagnosis #pulmonary
Ascites Differential Diagnosis Table - Serum Ascites Albumin Gradient (SAAG)

SAAG ≥ 1.1:
 • Cirrhosis
 • Portal
Ascites Differential ... Ascites Albumin Gradient ... MatthewHoMD #Ascites #Differential ... Serum #Albumin #Gradient
Pulmonary stenosis - severity - Grading of pulmonary stenosis

#Diagnosis #Cardiology #Pulmonic #Pulmonary #Stenosis #Severity #Grading #Classification
Pulmonary stenosis ... - severity - Grading ... of pulmonary stenosis ... Cardiology #Pulmonic #Pulmonary ... Stenosis #Severity #Grading
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
Diagnosis of ascites according to the serum ascites albumin gradient (SAAG)
SAAG ≥ 1.1:
 - Ascitic protein
ascites albumin gradient ... ascites #albumin #gradient ... #hepatology #differential
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function Grading ... velocities, PVF: pulmonary ... atrium, PASP: pulmonary ... #Dysfunction #Grading
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