17 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Differential Diagnosis Algorithm ... neuromuscular disease, ↓ chest ... : • Right-to-Left ... Differential #Diagnosis #Algorithm ... #pulmonary #Aa
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Differential Diagnosis Algorithm ... Intracardiac Right to Left ... Pulmonary Right to Left ... Abnormalities • Chest ... Differential #Diagnosis #Algorithm
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Gradient • Right to Left ... UnremarkableLab #AA
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Chest Pain - Diagnosis ... and Workup Algorithm ... • CBC, BMP, LET ... MatthewHoMD #Chest ... Pain #Diagnosis #Algorithm
Whistling Cough- A 4-year-old boy presented to the otorhinolaryngology outpatient clinic with a 2-day history of
middle and lower left ... hyperinflation of the left ... obstructing the left ... #NEJM #clinical ... #radiology #chest
Diagnostic algorithm for a child or adolescent with suspected pulmonary hypertension. CHD, congenital heart disease; CPET,
Diagnostic algorithm ... hypertension; CXR, chest ... lung disease; LFT ... Hypertension #Workup #Algorithm
Gas in the Left Atrium and Ventricle - Computed tomographic (CT) angiography of his chest, abdomen,
Gas in the Left ... angiography of his chest ... showed gas in the left ... Radiology #CT #CTChest ... AtrialEsophagealFistula #Fistula #NEJM
Hemothorax after Thoracentesis - Unfortunately, hemothorax developed shortly after the procedure (Panel B). Computed tomography and
angiography of the chest ... successfully with chest-tube ... Hemothorax #CXR #CT #Angiogram ... Thoracentesis #NEJM
Coronary-Artery Vasospasm - Cardiac catheterization was performed, and the findings showed mild nonobstructive coronary stenosis in
Panel A) and the left ... CoronaryArteryVasospasm #Angiogram ... #NEJM
Left-Middle-Lobe Pneumonia - Radiography of the chest revealed a cardiac apex, aortic arch, and gastric bubble
Left-Middle-Lobe ... Radiography of the chest ... infiltrate in the left ... A left-middle-lobe ... SitusInversus #NEJM