10 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... Hypoventilation: CNS ... neuromuscular disease ... #pulmonary #Aa
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
asthma • Pleural disease ... 12 / shallow breathing ... Hypoventilation: • CNS ... Hypoxemia #Hypoxia #differential ... #Diagnosis #Management
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Diagnosis Algorithm ... Pulmonary Arterial ... Hypoxemia: • COPD ... Sleep-Disordered Breathing
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Diagnosis Pulmonary ... Acute: Trauma, COPD ... Chronic: Asthma, COPD ... hernia, Obesity CNS ... #Diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... , Interstitial Disease ... UnremarkableLab #AA ... Hypoxia #hypoxemia #differential ... #diagnosis
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
restrictive lung disease ... bronchitis, and COPD ... #Pulmonary #Abnormalities ... #Abnormal #Diagnosis ... #PhysicalExam
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Connective tissue diseases ... obstruction • COPD ... , in advanced disease ... #differential # ... diagnosis
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
lesion Pott's Disease ... lymphadenopathy, pulmonary ... or abruptly • CN ... #Tuberculosis #diagnosis ... #differential #
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Diagnosis: Causes ... Classically” noted with pulmonary ... acidosis: - CNS ... restrictive lung disease ... (COPD, OSA, Asthma
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework ... Disease by CD4 ... Lymphadenopathy, CNS ... Infections #HIV #AIDS #pulmonary ... diagnosis #infectiousdiseases