18 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Hypoventilation: CNS ... MatthewHoMD #Hypoxemia ... #Hypoxia #Differential ... Diagnosis #Algorithm #pulmonary
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Hypoxemia / Hypoxia ... pneumonia • Water: pulmonary ... Hypoventilation: • CNS ... #Hypoxia #differential ... Algorithm #rapid #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... #Hypoxia #hypoxemia ... #differential #
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Short Stature - Differential ... • Turner Syndrome ... Anorexia Nervosa • CNS ... #ShortStature #Differential ... endocrinology #causes #pediatrics
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... cirrhosis, nephrotic syndrome ... Stress, Nausea, Pulmonary ... Diseases, CNS Disease ... #Hyponatremia #Differential
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... - Cirrhosis Syndrome ... the lung) - CNS ... hemorrhage) - Pulmonary ... #Hyponatremia #Differential
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... disorder (Cardiac, pulmonary ... etc) • CNS -> ... • Acute stroke syndromes ... #Weakness #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 ... Classically” noted with pulmonary ... with associated hypoxia ... acidosis: - CNS
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Hypereosinophilic Syndrome ... , wt loss; CV, CNS ... Lung #Diseases #pulmonary ... #differential #
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... Young females Differential ... Diagnosis: • CN ... #Adies #Pupil #PhysicalExam