14 results
Pulmonary Function Tests (PFTs) - Interpretation Algorithm
 • Normal
 • Pulmonary Hypertension, Anemia, Carboxyhemoglobinemia
 • Chest
Pulmonary Function ... Interpretation Algorithm ... • Normal • ... #FunctionTests ... Interpretation #Algorithm
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
of ST Segment Elevation ... - Differential ... QRS complex Pulmonary ... segment becomes elevated ... blocking drugs #STElevation
Liver Disease in Pregnancy
Intrahepatic Cholestasis of Pregnancy (ICP)
 • Onset/Trimester: 25-32 weeks
 • Typical clinical features:
Mild jaundice, Elevated ... to 10-20-fold elevation ... Syndrome (Hemolysis, Elevated ... to 10-20-fold elevation ... hepatitis #comparison #differential
Algorithm for the Evaluation of Dysphagia:Oropharyngeal:
- Characterized by difficulty initiating swallowing and accompanied by choking/coughing, nasopharyngeal
Algorithm for the ... , soft palate (elevation ... suprahyoid muscles (elevate ... #Extraluminal #Algorithm ... #Differential #
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Diagnosis Algorithm ... Elevated Hemoglobin ... Hypoxia-driven: Cardiac/pulmonary ... ), TEMPI (VEGF normal
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
specificity to elevated ... Bilirubin - +/- elevation ... or amyloid: • Elevation ... of Liver Enzyme Elevation ... chemistry #diagnosis #differential
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
Liver Injury - Differential ... Diagnosis Algorithm ... specificity to elevated ... Bilirubin - +/- elevation ... of Liver Enzyme Elevation
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
/0.8)] - PaO2 Normal ... A-a gradient to normal ... PiO2: Extreme Elevation ... Intracardiac, Pulmonary ... Hypoxia #hypoxemia #differential
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Dehydrogenase (LDH) - Differential ... upon damage • Normal ... Legionnaires disease • Pulmonary ... Idiosyncratic LDH Elevation ... #differential #
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
levels - Usually normal ... or slightly elevated ... Mild-to-moderate elevation ... WBC count and differential ... or may not be elevated