21 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 ... #Normal #pulmonary
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
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
obstruction: • FEV1 ... 0.70 or lower • FEV1 ... lower limit of normal ... Reversibility on spirometry ... or greater in FEV
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Exam: Usually normal ... spirometry - FEV1 ... often normal or ... near normal between ... spirometry - FEV1
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Flow Volume Loop Patterns ... and persevered FEV1 ... flow with reduced FEV1 ... nickmmark #FlowVolume ... pulmonary #PFTs #patterns
Classic (2009) Spirometric GOLD Classification of COPD Severity Based on Postbronchodilator FEV
#Diagnosis #Pulmonary #COPD #GOLD #Staging
Classic (2009) Spirometric ... Postbronchodilator FEV ... Pulmonary #COPD #GOLD #Staging ... Classification #FEV1
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Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
A) with scant scaling ... Melan-A staining ... confirmed a normal ... periodic acid–Schiff staining ... and meatball” pattern
Cardiac Amyloid - Diagnosis, Signs, Symptoms and Management

Clinical Presentation
- exertional dyspnea
- peripheral edema
- exertional syncope
- peripheral
hepatomegaly - normal ... pseudoinfarct pattern ... Symptoms #Cardiology #Staging
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
of Breathing Normal ... —20 per min in normal ... Children and aging ... may show this pattern ... #Breathing #Patterns
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Focal Hair Loss Pattern ... Diffuse Hair Loss Pattern ... loss), Female pattern ... • Drugs: Oral ... nodosa • Scaling