64 results
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
- 6 L/min • FiO2 ... of flow) Face Mask ... : 40 - 60% Device ... ~40% Venturi Mask ... respiratory #support #devices
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Devices Simple ... 6-10 LPM • FiO2 ... 10-15 LPM • FiO2 ... 10-15 LPM • FiO2 ... Oxygen #Delivery #Devices
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Oxygen Delivery by Device ... high percentage FiO ... set to desired FiO2 ... deliver desired FiO ... Pulmonary #Equipment #Devices
Oxygen Delivery Devices - Comparison
Low Flow:
 • Nasal cannula (1-6L, 24-40% FiO2)
 • Face mask (5-10L,
Oxygen Delivery Devices ... ) • Face mask ( ... Face tent/shovel mask ... ) • Venturi mask ... Oxygen #Delivery #Devices
Oxygen Delivery Devices
1. Flow is a variable describing the movement of a volume of gas over
Oxygen Delivery Devices ... Variable devices ... resulting in an FiO2 ... more predictable FiO2 ... NRB) • Venturi Mask
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... /0.8)] - PaO2 Normal ... A-a gradient to normal ... Elevation, Low Fio2 ... Disease and more • Diffusion
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
explained by pleural effusions ... the hypoxemia defines ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Severe - PaO2 / FiO2
Ascites, pericardial effusion, and left pleural effusion on subcostal 4-chamber POCUS echocardiogram

Subcostal window in SLE patient.
and left pleural effusion ... subcostal 4-chamber POCUS ... What abnormal fluid ... #s4c #POCUS #echocardiogram ... #POCUS #clinical
Tibiotalar Ankle Effusion Evaluation on Point of Care Ultrasound (POCUS)

POCUS for ankle effusions: position the ankle
Tibiotalar Ankle Effusion ... Care Ultrasound (POCUS ... ) POCUS for ankle ... #Normal #Ankle ... #POCUS #MSK #Clinical
Evaluation of Suprapatellar Knee Effusion (normal knee) on Point of Care Ultrasound (POCUS)

POCUS for knee effusions:
(normal knee) on ... ) POCUS for knee ... effusions: remember ... Evaluation #Knee #MSK ... #Normal