12 results
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
Patterns of pulmonary ... comparison, a normal ... #Diagnosis #PFTs ... #Spirometry #FlowVolume ... #Loops #Patterns
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Loops - Common Patterns ... Normal B. ... #Diagnosis #PFTs ... #Spirometry #FlowVolume ... #Loops #Patterns
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... Flow Volume Loop Patterns ... nickmmark #FlowVolume ... Loops #pulmonary #PFTs ... #patterns #diagnosis
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
Liver Function Test ... (LFTs) Elevation ... Hepatocellular Pattern ... #FunctionTest #LFTs ... #Elevation #Transaminitis
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
Abnormal Liver Function ... Hepatocellular Pattern ... AST): • US - Normal ... Burak @kwburak #LFTs ... #Elevated #Abnormal
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
Interpretation of LFTs ... specificity to elevated ... Bilirubin - +/- elevation ... - If both are normal ... of ALP • Near normal
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
of ST Segment Elevation ... Early-repolarization pattern ... leads • S1Q3T3 pattern ... segment becomes elevated ... of Normal Variant
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... evaluation of the pattern ... magnitude of enzyme elevation ... *Abnormal USS may ... #LFTs #Abnormal
Autoimmune Hepatitis

Clinical Presentation
 - Highly variable clinical presentation, from subclinical disease to acute liver failure.
 -
hepatocellular pattern ... though cholestatic pattern ... IgG typically elevated ... upper limit of normal ... (rare) - IgG Elevation
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
specificity to elevated ... Bilirubin - +/- elevation ... - If both are normal ... Tests of synthetic function ... of Liver Enzyme Elevation