24 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... (↑Shunting), ↓Perfusion ... #Diagnosis #Algorithm ... #pulmonary #Aa
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Ventilation/perfusion ... • Interstitial lung ... #Diagnosis #Algorithm
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Embolism, Obstructive Lung ... Disease and more • Diffusion ... Defect: Pulmonary ... , Interstitial Lung ... #Hypoxia #hypoxemia
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
: Interstitial lung ... gravity-dependent gradients ... direction leads to hypoxemia ... bypassing the lungs ... Respiratory #Failure #hypoxia
COVID-19 on Lung POCUS - Day 2

Day 2 after COVID diagnosis. Less sore throat, cough &
COVID-19 on Lung ... Day 2 after COVID ... bilateral pleural effusion ... #ultrasound #pulmonary ... BLines #POCUS #Effusion
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COVID-19 RESPIRATORY PATHWAY ALGORITHM
Awake proning may help with oxygenation
Permissive hypoxemia, if closely monitored and in the
COVID-19 RESPIRATORY ... PATHWAY ALGORITHM ... oxygenation Permissive hypoxemia ... absence of AMS/poor perfusion ... FOAMpodcast #COVID19
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Response Management Algorithm ... pneumonia • Water: pulmonary ... atelectasis • Lung ... Diagnosis #Management #Algorithm ... #rapid #pulmonary
One-page resource for Lung POCUS in COVID19:
- likely (unproven) sensitive due to peripheral distribution of lesions
One-page resource for Lung ... POCUS in COVID19 ... CT - pleural effusions ... #POCUS #COVID19 ... #coronavirus #pulmonary
Proposed Respiratory Support Algorithm in COVID19

The ‘intubate early’ paradigm, where patients who “fail” low flow oxygen
Respiratory Support Algorithm ... in COVID19 The ... lung disease are ... #criticalcare #hypoxia ... #failure #algorithm
General schema for respiratory support in patients with COVID-19
Low flow nasal cannula
 • Typically set at
patients with COVID ... useful to allow for lung-protective ... use conventional lung-protective ... respiratory #support #COVID19 ... #failure #algorithm