11 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
Hepatopulmonary Syndrome on Echocardiogram (A4C)
Hepatopulmonary Syndrome: Intrapulmonary shunting is most commonly demonstrated by contrast TTE when
Echocardiogram (A4C ... visualized in the left atrium ... with intracardiac shunt ... #bubble #shunting ... #hepatology #clinical
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
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
week of a known clinical ... consistent with pulmonary ... explained by pleural effusions ... by the ratio of arterial ... severity of the hypoxemia
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 ... as RAP>LAP as atrial ... Echocardiogram #clinical ... #pocus #a4c #intrapulmonary
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Effect in Right Atrium ... left to right shunt ... Diagnosis #cardiology #clinical ... echocardiogram #s4c ... #pocus #bubble
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
of lactate as a clinical ... a multitude of clinical ... the appropriate clinical ... output - Acute pulmonary ... ’s • Reduced Arterial
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 ... Change in clinical ... days before Pulmonary ... CARP, DECREASE V trials