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 ... #Normal #pulmonary
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
spirometry - FEV1 ... often normal or ... near normal between ... : Persistently abnormal ... spirometry - FEV1
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 ... Asthma #diagnosis #pulmonary
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... Flow Volume Loop Patterns ... and persevered FEV1 ... nickmmark #FlowVolume ... #PFTs #patterns
Pulmonary Function Tests (PFTs) - Interpretation Algorithm
 • Normal
 • Pulmonary Hypertension, Anemia, Carboxyhemoglobinemia
 • Chest
Pulmonary Function ... Algorithm • Normal ... Non-Emphysematous COPD ... Emphysematous COPD ... #Pulmonary #
Consensus diagnostic criteria for asthma-COPD overlap syndrome (ACOS) in patients with airflow limitation. COPD=chronic obstructive pulmonary
criteria for asthma-COPD ... COPD=chronic obstructive ... pulmonary disease ... nitric oxide; FEV1 ... lower limit of normal
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 ... It may be fast, normal ... Occasional sighs are normal ... #Abnormal #Diagnosis
Pulmonary Hypertension Groups - WHO Classification
Group I - Vascular remodeling of pulmonary arteries
 • Idiopathic, HIV,
Pulmonary Hypertension ... hypoxemia • COPD ... hemodialysis WHO PH Functional ... issues at rest, but normal ... issues at rest, but normal
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
ABG And BMP Normal ... (Cl + HCO3)} Normal ... <0.4 Pure Normal ... acidosis 0.4-0.8 Normal ... diabetic) Causes of Normal