13 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Limitation • Interstitial ... lung disease ... Hypoventilation Syndrome ... #Hypoxia #Differential
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... ILD caused by inhalation ... Churg Strauss syndrome ... ILD #diagnosis #differential ... #pulmonary #causes
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... : Interstitial lung ... diseases, pulmonary edema ... hepatopulmonary syndrome ... #Differential #
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Mismatch: Pulmonary Edema ... Disease, Interstitial ... Lung Disease ... #hypoxemia #differential
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... Differential Bilat ... , ARDS, interstitial ... lung disease, interstitial ... POCUS #clinical #ultrasound
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea ... Superior vena cava syndrome ... • Pulmonary edema ... • Cancer • Interstitial ... lung disease Vasculature
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Ultrasound Findings ... pleura in severe cases ... Cardiogenic Pulmonary Edema ... Respiratory Distress Syndrome ... #pulmonary #differential
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Injury (AKI) - Differential ... • Hepatorenal syndromes ... polyangiitis) Acute Interstitial ... hydronephrosis on UIS ... #KidneyInjury #Nephrology
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
(NCPE) - Differential ... blood cells in the lung ... the pulmonary interstitium ... dyspnea, tachypnea, hypoxemia ... #causes #differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
D-lactate (short bowel syndrome ... , pain, fever, hypoxia ... with associated hypoxia ... or restrictive lung ... Diagnosis #Summary #Nephrology