15 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
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
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
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
HFNC compared to NIV
HFNC:
- Comfort - Higher comfort  Eating, drinking and speaking less impaired 
-
Mostly reduced - CO2 ... Nasopharyngeal CO2 ... application - Pulmonary ... pressure - Extra pulmonary ... NIPPV #bipap #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
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
transfusion • Criteria: ARDS ... other cause of ARDS ... , and CXR with pulmonary ... hematology #diagnosis #comparison
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Noncardiogenic Pulmonary ... High Altitude Pulmonary ... High-altitude pulmonary ... dissolved in the PaO2 ... respiratory failure or ARDS
TRALI Diagnostic Criteria
TRALI type 1 - Patients who have no risk factors for ARDS and meet
risk factors for ARDS ... onset, Hypoxemia (PaO2 ... evidence of bilateral pulmonary ... (PaO2/FiO2 of 200 ... diagnosis #Criteria #pulmonary