8 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Right to Left Shunt ... Pulmonary Right ... to Left Shunt ... Hypoxemia #Hypoxia #Differential
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
the Newborn - Differential ... Only: • Poor Perfusion ... Left-to-Right Shunt ... Total Anomalous Pulmonary ... Cyanosis #Newborn #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Right to Left Shunt ... Disease and more • Diffusion ... Defect: Pulmonary ... Hypoxia #hypoxemia #differential
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
or anatomic shunt ... Arterial blood gas (ABC ... cirrhosis • Intra-pulmonary ... scanning or pulmonary ... older) on room air
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
cases - Dynamic air ... Possible bilateral effusion ... submassive PE) POCUS ... #differential # ... #signs #Lung #POCUS
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
ventilation to perfusion ... substances primarily affect ... granulomatosis • Abnormal perfusion ... -W237. 10.2214/AJR ... lung #diseases #differential
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Negative Contrast Effect ... Right Atrium - Differential ... left to right shunt ... echocardiogram #s4c ... #pocus #bubble
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... / hypoxemia -> focus ... output - Acute pulmonary ... Neoplasia/Warburg effect ... Acidosis #Elevation #Differential