8 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Reverse Halo Sign ... ARDS 3. ... Crazy-Paving Pattern ... Organizing Pneumonia ... #Pulmonary #ChestCT
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
sliding/barcode sign ... pleura reflection) Pneumonia ... Edema: - Widespread ... Distress Syndrome (ARDS ... #differential #
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 ... Differential Bilat ... : Pulmonary edema ... , ARDS, interstitial ... partially seen shred sign
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • CT: Halo sign ... you have HIV), Chills ... Infections #HIV #AIDS ... #pulmonary #differential
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
Crazy Paving on ... DDx: PAP, pulm edema ... pna, pulm hge, ARDS ... #Paving #Sign # ... CT #Lung #Pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... , Pneumonia and ... Edema, Atelectasis ... • Diffusion Defect ... Hypoxia #hypoxemia #differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... respiratory drive due to neurologic ... edema (most common ... reversible diffusion defects ... hypoxemia • Causes: Pneumonia
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Differential Diagnosis ... blood cells in the lung ... • Signs/Symptoms ... • Signs/Symptoms ... - The classic signs