14 results
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
inspired) PAO2 - alveolar ... O2 reaches the alveoli ... blood loss) or abnormal ... #pulmonary #differential ... #diagnosis #causes
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
Hypoxemia - Partial ... PaO2) is below normal ... #hypoxemia #differential ... #diagnosis #comparison ... #pulmonary
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... #Hypoxia #Differential ... #Diagnosis #Algorithm ... #pulmonary #Aa
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... Algorithm Ventilation ... Defect ** • Atrial ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Response Management Algorithm ... Blood: diffuse alveolar ... #Hypoxia #differential ... #Diagnosis #Management ... #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
#AA #Gradient #alveolar ... #arterial #pulmonary ... #Hypoxia #hypoxemia ... #differential # ... diagnosis
Intrapartum Abnormal Fetal HR Tracing - Causes of Variability & Decelerations - Differential Diagnosis Algorithm
Minimal/Absent Variability
Intrapartum Abnormal ... Decelerations - Differential ... Diagnosis Algorithm ... Reduced maternal arterial ... #Diagnosis #Algorithm
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... Diagnosis Framework ... shunting (eg, atrial ... #Differential # ... Diagnosis #pulmonary
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Diagnosis Algorithm ... : Cardiac/pulmonary ... ), TEMPI (VEGF normal ... #Diagnosis #Algorithm
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Diagnosis Algorithm ... Arrhythmia • Atrial ... Alveoli • Pneumonia ... #Diagnosis #Algorithm