12 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Gradient Normal ... A-a Gradient: ... compliance ↑ A-a Gradient ... #Algorithm #pulmonary ... #Aa #Gradient
Pulmonary stenosis - severity - Grading of pulmonary stenosis

#Diagnosis #Cardiology #Pulmonic #Pulmonary #Stenosis #Severity #Grading #Classification
Pulmonary stenosis ... - severity - Grading ... #Diagnosis #Cardiology ... #Stenosis #Severity ... #Grading #Classification
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 #Cardiology
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 ≤ ... UnremarkableLab #AA ... #differential #diagnosis
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function ... Grading - Schematic ... atrium, PASP: pulmonary ... #Diagnosis #Cardiology ... #Dysfunction #Grading
Hepatopulmonary Syndrome (HPS) 

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

HPS-diagnosis:
1. Patients
Pulmonary vasculature ... Alveolar-arterial oxygen gradient ... vasodilatation HPS-severity ... HPS #hepatology #pulmonary ... #diagnosis
Mitral stenosis - Recommendations for classification of mitral stenosis severity

Valve area, 
Mean gradient and 
Pulmonary artery
mitral stenosis severity ... Valve area, Mean gradient ... and Pulmonary ... artery pressure #Diagnosis
Hepatopulmonary Syndrome (HPS) Diagnosis Algorithm
Bubble echo is the first piece of the puzzle. The nail on
Syndrome (HPS) Diagnosis ... Algorithm Bubble ... the dx is an A-a gradient ... #Algorithm #hepatology ... #pulmonary
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
- Differential Diagnosis ... Algorithm Cause ... transport, renal function ... Gastrointestinal function ... gastrointestinal osmotic gradient
Algorithm for Suspected SVC Syndrome

SVC syndrome suspected: Facial/arm/neck edema, distended neck/chest veins, facial plethora, dyspnea, cough,
Algorithm for Suspected ... SVC Syndrome Grading ... head or neck with functional ... SVC #Syndrome #Algorithm ... #diagnosis #management