27 results
Oxygen Delivery Devices
1. Flow is a variable describing the movement of a volume of gas over
Oxygen Delivery Devices ... Room air is 21% ... O2 and air from ... NRB) • Venturi Mask ... #management #criticalcare
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Oxygen Delivery by Device ... entrainment of room air ... Venturi Mask (venti-mask ... Pulmonary #Equipment #Devices ... #Management
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
) Face Mask: ... FiO2: 40 - 60% Device ... ~40% Venturi Mask ... respiratory #support #devices ... #management #pulmonary
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Devices Simple ... Mask: • Flow ... oxygen ambient air ... Oxygen #Delivery #Devices ... #management #pulmonary
Nasal Oxygen Delivery Devices
Nasal cannula can be used to deliver supplemental O2. Conventional nasal cannula are
Oxygen Delivery Devices ... High flow nasal ... entrain ambient air ... Oxygen #Delivery #Devices ... #management #pulmonary
Oxygen Delivery Methods
 • Nasal Cannula
 • Nonrebreather Mask
 • Non-Invasive Ventilation (CPAP/BiPAP)
 • Venturi Mask
Nonrebreather Mask ... BiPAP) • Venturi Mask ... • High-Flow Nasal ... Delivery #Methods #devices ... respiratory #pulmonary #management
CPAP Troubleshooting Tips
1. Wrong size/style mask → try a different mask, nasal pillows
2. Trouble getting used
tolerating forced air ... → use device with ... noise → check air ... filter, device ... Troubleshooting #Tips #management
COVID-19 Phenotypes - Implications for Respiratory Support Management

L Phenotype
 - Low Elastcnce (High Compliance)
 - Low
Respiratory Support Management ... Ventilation Perfusion ... Weight - Low ... Right-to-Left Shunt ... Variations #Diagnosis #Management
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... flail chest) • Low ... Extreme Elevation, Low ... Right to Left Shunt ... Disease and more • Diffusion
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Diagnosis and Management ... 1) or anatomic shunt ... Arterial blood gas (ABC ... older) on room air ... SpO2 > 88% • Management