10 results
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Loops - Common Patterns ... Normal B. ... Restrictive Parenchymal ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
curves comparing normal ... , obstructive, and ... restrictive disorders ... commonly available spirometers ... #Restrictive #Normal
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 ... #Normal #pulmonary
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Flow Volume Loop Patterns ... extra-thoracic obstruction ... reduced FEV1 • Restriction ... nickmmark #FlowVolume ... pulmonary #PFTs #patterns
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
Pulse Abnormalities ... Unequal/DeIayed: • Obstructive ... Takayasu disease • Normal ... Pericarditis • Restrictive ... hypoglycemia) #Pulse #Abnormalities
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
Abnormalities in ... causes, including restrictive ... may show this pattern ... Obstructive Breathing ... #Breathing #Patterns
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
infection - Portal ... hypoxia Chronic obstructive ... disease with mixed restrictive ... and obstructive ... pattern IV.
Amyloidosis - Summary
Group of disorders associated with extracellular deposition of fibrils formed from low-molecular-weight proteins in
low-voltage EKG, & restrictive ... malabsorption, and pseudo-obstruction ... periorbital purpura • Restrictive ... • Conduction abnormalities ... Doppler imaging: Normal-size
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
pulmonary and renal abnormalities ... strength & enzymes normal ... fluid (CSF) is abnormal ... ear infections, destructive ... Glomerulonephritis, arthritis, obstructive
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
pulmonary and renal abnormalities ... Glomerulonephritis, arthritis, obstructive ... - Recurrent oral ... - (C-ANCA) pattern ... - (P-ANCA) pattern