28 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... • Interstitial lung ... Malformation • Severe Pneumonia ... Hypoventilation Syndrome ... #Causes #Pulmonary
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... obesity-hypoventilation syndrome ... • Causes: Pneumonia ... hepatopulmonary syndrome ... #Differential #Diagnosis
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
- Differential Diagnosis ... - Physiologic: ARDS ... Focal Alveolar: Pneumonia ... : ILD, pHTN, Advanced ... #Diagnosis #causes
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... • Idiopathic pulmonary ... Churg Strauss syndrome ... #diagnosis #differential ... #pulmonary #causes
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
- Differential Diagnosis ... Acute Coronary Syndrome ... Alveoli • Pneumonia ... • ARDS • COPD ... Interstitium • ILD
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura reflection) Pneumonia ... pleura in severe cases ... Respiratory Distress Syndrome ... #differential #diagnosis ... #signs #Lung #POCUS
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... : • 3 syndromes ... , pleural effusion ... Infections #HIV #AIDS ... #pulmonary #differential
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV/AIDS ... complex • Nodular/Masses ... Actinomyces spp., NHL; Lung ... Parapneumonic effusion ... #differential #diagnosis
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Respiratory Distress Syndrome ... congestion with hypoxemia ... the underlying cause ... oxygenation in pneumonia ... #CheatSheet #Diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... , Pneumonia and ... , Interstitial Lung ... #Hypoxia #hypoxemia ... #differential #diagnosis