5 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
= [FiO2 x (Patm ... • Alveolar Hypoventilation ... #alveolar #arterial ... #pulmonary #Hypoxia ... #hypoxemia #differential
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Normal A-a Gradient ... Cardiac, Vascular, Alveolar ... MatthewHoMD #Hypoxemia ... #Hypoxia #Differential
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
Hypoxia and Hypoxemia ... ) PIO2 - atmospheric ... inspired) PAO2 - alveolar ... O2 reaches the alveoli ... #pulmonary #differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Failure - Differential ... first part of alveolar ... second part of alveolar ... gravity-dependent gradients ... #Differential #
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Edema (NCPE) - Differential ... interstitium and alveoli ... dissolved in the PaO2/FiO2 ... • Symptoms: Hypoxemic ... edema #causes #differential