23 results
Mechanical ventilation in obese patients according to the i-STAR Algorithm
Intubate
 • Anticipate difficult airway management and
5 cmH20 in non-ARDS ... Gradually lower Fi02 ... recruitment • FiO2 ... desaturation prioritise FiO2 ... IAP - 13)/2 in ARDS
Oxygen Delivery Systems and Approximate FiO2:
#Management #SupplementalO2 #Oxygen #Delivery #Devices #Interface #FiO2 #NonRebreather #HFNC #NasalCannula #Simple
and Approximate FiO2 ... #Management #SupplementalO2 ... Devices #Interface #FiO2
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
low-percentage supplemental ... higher percentage supplemental ... high percentage FiO ... set to desired FiO2 ... deliver desired FiO
PROSEVA definition of ARDS
Thus, the PROSEVA trial essentially modifies the Berlin definition of ARDS, with the
definition of ARDS ... definition of ARDS ... that the PaO2/FiO2 ... that the PaO2/FiO2 ... #CriticalCare #ARDS
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Distress Syndrome (ARDS ... severity of the ARDS ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... >= 5cm H2O #ARDS
Understanding & Treating ARDS - Acute Respiratory Distress Syndrome

•  Timing - within one week of
Understanding & Treating ARDS ... Oxygenation PaO2/FiO2 ... @nickmmark #ARDS
Oxygen delivery & ABG interpretation made easier with this simple colour-coded table. Please share, and print
#Management #SupplementalO2 ... Devices #Interfaces #FiO2
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... chest) • Low PiO2 ... Elevation, Low Fio2 ... : Atelectasis, ARDS
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
not respond to supplemental ... response to 100% FiO2 ... response to 100% FiO2
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... or CXR ● PaO2/FiO2 ... sepsis-associated ARDS ... days after dx of ARDS ... RespiratoryDistress #Syndrome #ARDS