14 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... - Differential Diagnosis ... • Interstitial lung ... Hypoventilation Syndrome ... #Hypoxia #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... obesity-hypoventilation syndrome ... direction leads to hypoxemia ... hepatopulmonary syndrome ... #Differential #
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... , Interstitial Lung ... #Hypoxia #hypoxemia ... #differential #
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cirrhosis Syndrome ... carcinoma of the lung ... ) - CNS pathology ... #Diagnosis #Table ... #Causes #Sodium
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
D-lactate (short bowel syndrome ... , pain, fever, hypoxia ... Classically” noted with pulmonary ... acidosis: - CNS ... or restrictive lung
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... Most Common Causes ... in the adjacent lung ... of the affected lung ... #differential #
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Hypereosinophilic Syndrome ... , wt loss; CV, CNS ... #Diseases #pulmonary ... #differential # ... diagnosis #comparison #table
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
coagulopathy) • CBC w differential ... recent DAN) • EMG/NCS ... Goodpasture's cause ... sparing of the lung ... #differential #
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
including restrictive lung ... consider infarction, hypoxia ... hyperventilation syndrome—a ... Breathing #Patterns #Pulmonary ... Abnormal #Diagnosis #PhysicalExam
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Pneumonia: • 3 syndromes ... Lymphadenopathy, CNS ... Infections #HIV #AIDS #pulmonary ... #differential #