26 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Algorithm Ventilation/perfusion ... • Pulmonary Arterial ... Right to Left Shunt ... Defect ** • Atrial ... Right to Left Shunt
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 ... Echocardiogram #A4C ... bubble #shunting #hepatology
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
either due to a diffusion-perfusion ... 1) or anatomic shunt ... cycles after right atrial ... blood gas (ABC) ... management #treatment #hepatology
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
syndrome, OSA DIFFUSION ... VIQ mismatch and shunt ... of reversible diffusion ... pulmonary embolus SHUNT ... shunting (eg, atrial
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
Only: • Poor Perfusion ... Left-to-Right Shunt ... Arteriosus • Atrial ... Right-to-Left Shunt
Pericardial Clot on Echocardiogram

ST elevation of acute pericarditis was misdiagnosed as STEMI and thrombolysed with SK
thrombolysed with SK ... hemorrhagic pericardial effusion ... #Pericardial #effusion ... clinical #cardiology #a4c
Hepatic Masses on MRI - Differential Diagnosis by MRI Findings

Masses: Hemangioma, Adenoma, FNH, HCC, Fibrolamellar HCC,
Modalities: T1, T2, Arterial ... Out-of-phase, DWI, ADC ... diagnosis #liver #hepatology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Right to Left Shunt ... - Anatomic Shunt ... - Physiologic Shunt ... Disease and more • Diffusion ... Gradient #alveolar #arterial
Evaluation of Electrical Injury in the Emergency Department 

Common Injuries by System:

CNS - Seizure, coma, spinal
immediate, prior to ED arrival ... MSK - Fractures ... posterior shoulder - AC ... especially with AC
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
Pseudo Pelger-Huet ... Amy Chung, MD, MSc ... Blood #Disorders #hematology