121 results
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
Nasal Oxygen Delivery Devices
Nasal cannula can be used to deliver supplemental O2. Conventional nasal cannula are
used to deliver supplemental ... rates & moderate FiO2 ... achieving a higher FiO2 ... In hypoxemic respiratory ... • Patients in respiratory
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Criteria for Acute Respiratory ... Syndrome (ARDS) - Respiratory ... lobar collapse, lung ... mm Hg < PaO2 / FiO2 ... #ARDS #Acute #Respiratory
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... Hypoventilation: CNS of Respiratory ... Elevation, Low Fio2 ... Embolism, Obstructive Lung ... , Interstitial Lung
Oxygen delivery & ABG interpretation made easier with this simple colour-coded table. Please share, and print
#Management #SupplementalO2 ... Devices #Interfaces #FiO2
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Improves with supplemental ... : Interstitial lung ... ventilation (V) in the lungs ... bypassing the lungs ... not improve with supplemental
Lung Volumes and Capacities

The amount of air that moves in and out of the lungs during
Lung Volumes and ... and out of the lungs ... The expiratory reserve ... The inspiratory ... #Lung #Volumes #
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
- 6 L/min • FiO2 ... - 10 L/min • FiO2 ... - 15 L/min • FiO2 ... on valve) • FiO2 ... Delivery #Systems #respiratory
Understanding & Treating ARDS - Acute Respiratory Distress Syndrome

•  Timing - within one week of
Treating ARDS - Acute Respiratory ... Origin of Edema - respiratory ... Oxygenation PaO2/FiO2 ... nickmmark #ARDS #Respiratory