25 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... : Atelectasis, ARDS ... V/Q Mismatch: Pulmonary ... , Atelectasis, Pulmonary ... Diffusion Defect: Pulmonary
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Distress Syndrome (ARDS ... consistent with pulmonary ... lung collapse, or pulmonary ... severity of the ARDS ... >= 5cm H2O #ARDS
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
arterial oxygen (PaO2 ... compensate for low PaO2 ... differential #diagnosis #comparison ... #pulmonary
Lung Ultrasound: Cardiogenic Pulmonary Edema vs ARDS
Cardiogenic Pulmonary Edema:
 • Smooth pleural line
 • AIS >
Edema vs ARDS ... Cardiogenic Pulmonary ... edema / ARDS: ... UAlberta_Sono #APE #ARDS ... #comparison #clinical
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... leading to increased pulmonary ... consistent with pulmonary ... on CT or CXR ● PaO2 ... days after dx of ARDS
Oxygen Saturation - Measurement Techniques and Limitations
 • Sp02 - Cutaneous pulse oximeter
 • SaO2 Calculated
pulse oximeter • SaO2 ... ABG device • SaO2 ... #Measurement #pulmonary ... #diagnosis #comparison
Differentiating Features Between Central and Peripheral Cyanosis

Mechanism - Arterial destauration
Sites - Skin, mucous membrane of oral
Oxygen therapy - Pulmonary ... Arterial blood gas - pO2 ... Arterial blood gas - pO2 ... Central #Peripheral #Comparison
Barcode Sign in Pneumothorax on POCUS - M-Mode

seashore sign: normal lung sliding

barcode/stratosphere sign: pneumothorax 

#Pneumothorax #Barcode
Pneumothorax on POCUS ... Barcode #Sign #POCUS ... #Diagnosis #Comparison ... stratosphere #Clinical #Pulmonary
Pneumonia on Chest Xray and POCUS

Extensive pneumonia in lower left lobe (red arrow). 
POCUS: Dynamic air
Chest Xray and POCUS ... POCUS: Dynamic air ... AirBronchogram #POCUS ... #CXR #Comparison ... Clinical #Lung #Pulmonary
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... ) Cardiogenic Pulmonary ... Distress Syndrome (ARDS ... submassive PE) POCUS ... #signs #Lung #POCUS