10 results
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
Forced vital capacity ... (FVC) curves comparing ... normal, obstructive ... #FVC #Forced #Vital ... #Restrictive #Normal
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
comparison, a normal ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops ... Patterns #Comparison #Normal
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Exam: Usually normal ... Findings: Variably abnormal ... often normal or ... near normal between ... : Persistently abnormal
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Normal B. ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
lower • FEV1 / FVC ... lower limit of normal ... Reversibility on spirometry ... Increase of FEV1 or FVC ... greater in FEV or FVC
Lung Volumes and Capacities

The amount of air that moves in and out of the lungs during
expiration of a normal ... (FRC) represents ... expiration of a normal ... The vital capacity ... (VC) is the maximum
Consensus diagnostic criteria for asthma-COPD overlap syndrome (ACOS) in patients with airflow limitation. COPD=chronic obstructive pulmonary
volume in 1 s; FVC ... =forced vital capacity ... lower limit of normal
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Differential Diagnosis Algorithm ... A-a Gradient Normal ... • ↓Diffusion Capacity ... Differential #Diagnosis #Algorithm
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... tests algorithm ... initial response to abnormal ... *Abnormal USS may ... #LFTs #Abnormal
Causes of Chronic Cough - Differential Diagnosis Algorithm

Abnormal Chest X-Ray:
 • Chronic Infection (Eg. Fungal, Tuberculosis)
Differential Diagnosis Algorithm ... Abnormal Chest ... Disease (FEV1/FVC ... Differential #Diagnosis #Algorithm