96 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
/0.8)] - PaO2 Normal ... A-a gradient to normal ... : Atelectasis, ARDS ... Embolism, Obstructive Lung ... , Interstitial Lung
Lung Ultrasound: Cardiogenic Pulmonary Edema vs ARDS
Cardiogenic Pulmonary Edema:
 • Smooth pleural line
 • AIS >
Pulmonary Edema vs ARDS ... may be P > A, Normal ... pulmonary edema / ARDS ... UAlberta_Sono #APE #ARDS ... pulmonary #edema #comparison
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Distress Syndrome (ARDS ... lobar collapse, lung ... severity of the ARDS ... - 200 mm Hg < PaO2 ... >= 5cm H2O #ARDS
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
arterial oxygen (PaO2 ... ) is below normal ... compensate for low PaO2 ... differential #diagnosis #comparison
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... , inflammatory lung ... permeability, lung ... with decreased lung ... on CT or CXR ● PaO2
Barcode Sign in Pneumothorax on POCUS - M-Mode

seashore sign: normal lung sliding

barcode/stratosphere sign: pneumothorax 

#Pneumothorax #Barcode
Pneumothorax on POCUS ... seashore sign: normal ... lung sliding ... Barcode #Sign #POCUS ... #Diagnosis #Comparison
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
bilateral B-lines - Normal ... Distress Syndrome (ARDS ... unilateral B-lines - Normal ... submassive PE) POCUS ... #POCUS #ultrasound
POCUS appearance of Pleural thickening at right base. (patient was referred as possible pleural effusion, referral
POCUS appearance ... available) compared to normal ... Pleural #Thickening #POCUS ... #Clinical #Comparison ... #Lung #Ultrasound
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
POCUS Young ... POCUS lung exam ... Pulmonary edema, ARDS ... Lung POCUS shows ... Lung POCUS invaluable
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
ARDS/VALI progression ... involvement, with “white lung ... The normal-sized ... CXR #ChestXRay #ARDS