48 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... - PaO2 A-a gradient ... Hypoventilation: CNS of Respiratory ... Embolism, Obstructive Lung ... , Interstitial Lung
Lung Auscultation and Physical Exam Findings in Selected Lung Disorders

#PhysicalExam #Auscultation #Pulmonary #Percussion #Dullness #Fremitus #BreathSounds
Lung Auscultation ... Findings in Selected Lung ... #Transmitted #Comparison ... #Table #Lung #Diagnosis
Basics of Waveform Capnography
Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide
Can use measurement and morphology
different phases of respiratory ... Assessing for CO2 ... PHASE I - Inspiratory ... Transition as CO2 ... the heart to the lung
Main Lung Ultrasound differences between COVID-19 involvement and other conditions that may yield respiratory symptoms
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Main Lung Ultrasound ... that may yield respiratory ... COVID19 #POCUS #Lung ... #Ultrasound #Comparison ... #Table #Diagnosis
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 ... - 200 mm Hg < PaO2 ... #ARDS #Acute #Respiratory
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Respiratory or Metabolic ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... or restrictive lung
Toxidromes Summary Table
Heart Rate - Respiratory Rate - Blood Pressure - Mental Status - Skin -
Toxidromes Summary Table ... Heart Rate - Respiratory ... #Toxidromes #comparison ... #table #toxicology
Weaning from the Ventilator - Algorithm
Setting up for extubation success
 • Decrease demand — correct metabolic
acidosis, decrease CO2 ... steroids & NMB • Respiratory ... stop or reduce long ... Diuresis — Dry lungs ... are happy lungs
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Hypoxemic Respiratory ... HYPOVENTILATION • Rising PaCO2 ... : Interstitial lung ... ventilation (V) in the lungs ... bypassing the lungs
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... centrilobular emphysema - Respiratory ... #Differential #Table