454 results
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Flow 6-10 LPM • FiO2 ... 35-50% Face Tent ... 10-15 LPM • FiO2 ... 10-15 LPM • FiO2 ... Devices #management #pulmonary
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
- 6 L/min • FiO2 ... - 10 L/min • FiO2 ... Device: Face Tent ... - 15 L/min • FiO2 ... devices #management #pulmonary
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 ... Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary
Oxygen Delivery Devices - Comparison
Low Flow:
 • Nasal cannula (1-6L, 24-40% FiO2)
 • Face mask (5-10L,
(1-6L, 24-40% FiO2 ... (5-10L, 35-60% FiO2 ... ) • Face tent/shovel ... (5-15L, 35-50% FiO2 ... Comparison #table #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
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... lung collapse, or pulmonary ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Severe - PaO2 / FiO2
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
speaking - Sleep Test ... - Ice Test - ... Rest Test - Anticholinesterase ... Test - Quiver ... LikelihoodRatios #PhysicalExam
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
meniscal integrity) tests ... #Sports #Knee #PhysicalExam ... McMurray #Drawer #Test
Characteristics of Breath Sounds 

Vesicular, Broncho-vesicular, Bronchial, Tracheal 

#Auscultation #Breath #Sounds #PhysicalExam #Lung #Pulmonary #Diagnosis

** GrepMed
Breath #Sounds #PhysicalExam ... #Lung #Pulmonary ... GrepMed Recommended Text
Shoulder Exam - Provocative Testing

Supraspinatus muscle injury:
 - Jobe’s Test
 - Hawkin’s Test
 - Drop Arm
injury: - Jobe’s Test ... - Hawkin’s Test ... - Drop Arm Test ... - O’Brien Test ... #Diagnosis #PhysicalExam