9 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Arterial Hypertension ... Right to Left Shunt ... Defect ** • Atrial ... Right to Left Shunt
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
VIQ mismatch and shunt ... lung diseases, pulmonary ... asthma, COPD, pulmonary ... embolus SHUNT ... shunting (eg, atrial
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Right to Left Shunt ... Disease and more • Diffusion ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia ... #hypoxemia #differential
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
1) or anatomic shunt ... (Type 2) Clinical ... cycles after right atrial ... blood gas (ABC) ... scanning or pulmonary
Double Shunt on Echocardiogram
What do you see on this saline contrast study, in a patient with
liver disease and pulmonary ... Early transit of bubbles ... = PFO 2. ... as RAP>LAP as atrial ... clinical #pocus #a4c
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Effect in Right Atrium ... left to right shunt ... 2. ... echocardiogram #s4c ... #pocus #bubble
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
specific questions to ask ... murmur 3/6) - Pulmonary ... indication of AC ... days before Pulmonary ... CARP, DECREASE V trials
Intraoperative Hypoxia / Desaturation / Cyanosis - Guidelines for Crises in Anaesthesia
Using these steps from start
Consider whether poor perfusion ... rate, rhythm, perfusion ... help AND check arterial ... airway pressure → 2- ... o Aspiration, pulmonary
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
the first 1 to 2 ... infiltrates, pleural effusions ... (fever, cough, hypoxia ... starting ART < 2 ... therapy (COAT TRIAL