13 results
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia ... - Physiologic: ARDS ... Focal Alveolar: Pneumonia ... Hemorrhage • Impaired Diffusion ... #hypoxia #Differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic Dyspnea ... Pericardial • Effusion ... Alveoli • Pneumonia ... • ARDS • COPD ... Acidosis #Chronic #Dyspnea
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
CP • Cough, dyspnea ... • Cough and dyspnea ... , pleural effusion ... Infections #HIV #AIDS ... #pulmonary #differential
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... e.g., CXR, CT, ultrasound ... symptoms (e.g., dyspnea ... signs (tachypnea, hypoxemia ... #Pneumonia #Venn
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... , Pneumonia and ... Disease and more • Diffusion ... Defect: Pulmonary ... #Hypoxia #hypoxemia
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Associated Lung Ultrasound ... pleura reflection) Pneumonia ... Possible bilateral effusion ... Distress Syndrome (ARDS ... #Lung #POCUS #ultrasound
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
B-Lines in case of Pneumonia ... pt with fever/dyspnea ... /lung sliding: Pulmonary ... edema, ARDS, interstitial ... POCUS #clinical #ultrasound
Lung POCUS: Small right anechoic parapneumonic effusion. Note B-lines. Curvilinear probe used. More commonly seen in
parapneumonic effusion ... seen in bacterial pneumonia ... prelim reports of COVID19 ... #Lung #POCUS #Pulmonary ... #Ultrasound #Clinical
CT and ultrasonographic features of COVID-19 pneumonia
Lung CT:
 - Thickened pleura
 - Ground glass shadow and
ultrasonographic features of COVID ... -19 pneumonia Lung ... - Pulmonary infiltrating ... #pneumonia #ChestCT ... #Ultrasound #POCUS
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
, organizing pneumonia ... , ARDS, DAH, solitary ... exudative pleural effusions ... Dyspnea 3. ... - Pulmonary