8 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... Alveolar • V/Q Mismatch ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Ventilation/perfusion Mismatch ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = ... A-a Gradient ≤ ... and more • V/Q Mismatch ... arterial #pulmonary #Hypoxia ... #hypoxemia #differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
common than VIQ mismatch ... PERFUSION (V/Q) MISMATCH ... gravity-dependent gradients ... direction leads to hypoxemia ... Respiratory #Failure #hypoxia
General schema for respiratory support in patients with COVID-19
Low flow nasal cannula
 • Typically set at
in more severe hypoxemia ... filter • N95 mask ... for refractory hypoxemia ... #criticalcare #hypoxia ... #failure #algorithm
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
upright position • Hypoxemia ... - V/Q mismatch ... Quantifies degree of hypoxemia ... 80mmHg or A-a gradient
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Differential Diagnosis Algorithm ... We may ask why are ... Ask some questions ... high - Chronic hypoxia ... Differential #Diagnosis #Algorithm
Mechanical ventilation in obese patients according to the i-STAR Algorithm
Intubate
 • Anticipate difficult airway management and
to the i-STAR Algorithm ... and difficult mask ... • FiO2: avoid hyperoxia ... patients #iSTAR #Algorithm