491 results
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 ... Disease and more • Diffusion ... Defect: Pulmonary
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
provide a different FiO2 ... Flow 2-15 LPM • FiO2 ... 10-15 LPM • FiO2 ... 10-15 LPM • FiO2 ... Devices #management #pulmonary
Light's Criteria for Pleural Effusions

#Diagnosis #Pulmonary #Lights #Criteria #Pleural #Effusion #Differential

** GrepMed Recommended Text: Pocket Medicine:
Criteria for Pleural Effusions ... #Diagnosis #Pulmonary ... Criteria #Pleural #Effusion
Shark Tail Appearance of Consolidated Lung on Pleural Effusion on POCUS

Dr. David Feller-Kopman @dfellerk

#Pleural #Effusion #pulmonary
Lung on Pleural Effusion ... on POCUS Dr. ... dfellerk #Pleural #Effusion ... #pulmonary #Lung ... #POCUS #clinical
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... explained by pleural effusions ... lung collapse, or pulmonary ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2
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 ... devices #management #pulmonary
Right pleural effusion with "spine sign" seen beautifully by using large footprint curvilinear transducer on lung
Right pleural effusion ... Care Ultrasound (POCUS ... Sign #Clinical #POCUS ... Lung #Pleural #Effusion ... #ultrasound #pulmonary
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
high percentage FiO ... set to desired FiO2 ... deliver desired FiO ... Oxygen #Delivery #FiO2 ... #Pulmonary #Equipment
Spine sign: visualization of the vertebral bodies in the thoracic cavity above the diaphragm indicative of
indicative of pleural effusion ... absence of pleural effusion ... #SpineSign #POCUS ... Clinical #Pleural #Effusion ... #Pulmonary #Lung
Hydropneumothorax on Lung POCUS

HIV/AID(CD4<250) with cough, dyspnea.Left lung anterior mid. Left lung. Findings consistent with PNA.
Hydropneumothorax on Lung POCUS ... Has pleural effusion ... hydropneumothorax #effusion ... #bubbles #POCUS ... clinical #ultrasound #pulmonary