30 results
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
Forced vital capacity ... curves comparing normal ... , obstructive, and ... Forced #Vital #Capacity ... #Normal #Comparison
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 #Loops ... #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 #Loops
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 ... #Asthma #COPD #comparison
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
Consensus diagnostic criteria for asthma-COPD overlap syndrome (ACOS) in patients with airflow limitation. COPD=chronic obstructive pulmonary
COPD=chronic obstructive ... 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
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic algorithm ... nephritis • Obstructive ... Nephropathy Renin Normal ... transplant • Obstructive ... Hyperkalemia #Diagnosis #algorithm
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
Abnormal Lipid Profiles - Differential Diagnosis Algorithm

Increased Cholesterol and Triglycerides 
 - Genetic Causes
Abnormal Lipid Profiles ... Differential Diagnosis Algorithm ... Hypothyroid • Obstructive ... #Dyslipidemia #Abnormal ... Differential #Diagnosis #Algorithm