18 results
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
For comparison, ... a normal loop is ... #Diagnosis #PFTs ... #Spirometry #FlowVolume ... #Normal #pulmonary
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Normal B. ... Stem Bronchial Obstruction ... Fixed Upper Airway Obstruction ... #Diagnosis #PFTs ... #Spirometry #FlowVolume
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
curves comparing normal ... , obstructive, and ... commonly available spirometers ... #Restrictive #Normal ... #Comparison
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
exacerbations • PFT ... spirometry - FEV1 ... often normal or ... near normal between ... #Asthma #COPD #comparison
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
extra-thoracic obstruction ... intra-thoracic obstruction ... flow • Fixed obstruction ... nickmmark #FlowVolume ... Loops #pulmonary #PFTs
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
expiratory air flow obstruction ... used to identify obstruction ... lower limit of normal ... Reversibility on spirometry
Dilated Abdominal Veins and Caput Medusae - Direction of Blood Flow

Vein Milking technique can be used
• Normal veins ... • Portal Hypertension ... : The normal physiology ... • IVC Obstruction ... #comparison #abdominal
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
Pathophysiology Comparison ... Obstructive ... Shock: • Obstructive ... cardiac chambers and normal ... Pathophysiology #Comparison
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
Interpretation of LFTs ... Cholestasis / Obstructive ... - elevation Obstruction ... - If both are normal ... of ALP • Near normal
Liver Function Tests (LFTs) - Normal Values and Interpretation

Alanine aminotransferase (ALT/SGPT) - Liver, cardiac & skeletal
Function Tests (LFTs ... ) - Normal Values ... DBili) - Biliary obstruction ... Function #Tests #LFTs