11 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... MatthewHoMD #Hypoxemia ... #Hypoxia #Differential ... #pulmonary #Aa
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... - Differential Diagnosis ... Algorithm Ventilation ... Abnormalities #Hypoxemia ... #Hypoxia #Differential
Lactic Acidosis - Classification and Differential Diagnosis
Type A Lactic Acidosis: Inadequate Oxygen Delivery
 • Anaerobic muscular
Classification and Differential ... oxygen delivery: Hypoxemia ... Renal failure, Short ... Nitroprusside infusion ... Classification #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... Disease and more • Diffusion ... Defect: Pulmonary ... #Hypoxia #hypoxemia ... #differential #
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Failure - Differential ... gravity-dependent gradients ... direction leads to hypoxemia ... Respiratory #Failure #hypoxia ... #Differential #
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
usually: - hypoxemia ... patient with shock/hypoxemia ... hypoperfusion/ hypoxemia ... output - Acute pulmonary ... Oxygen Content: - Hypoxemia
Lactic Acidosis - Differential Diagnosis Framework

Type A: Impaired O2 Delivery (DO2)
 • Decreased O2 Delivery: Hypotension
Lactic Acidosis ... - Differential Diagnosis ... Arrest, Severe Hypoxemia ... testing • Seen in Short ... #Acidosis #Differential
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
defect (Type 1) ... anatomic shunt (Type ... upright position • Hypoxemia ... Quantifies degree of hypoxemia ... 80mmHg or A-a gradient
Shock Types - Classification
State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
cellular and tissue hypoxia ... diminished tissue perfusion ... failure from massive pulmonary ... embolism or severe pulmonary ... #criticalcare #differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
D D-lactate (short ... - Rapid saline infusion ... , pain, fever, hypoxia ... Classically” noted with pulmonary ... with associated hypoxia