18 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Right-to-Left Shunt ... Cardiac, Vascular, Alveolar ... (↑Shunting), ↓Perfusion ... Hypoxemia #Hypoxia #Differential
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia - Differential ... Pneumothorax, Alveolar ... Alkalosis • Shunt ... Hemorrhage • Impaired Diffusion ... Hypoxemia #hypoxia #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... first part of alveolar ... second part of alveolar ... across capillary-alveolar ... Failure #hypoxia #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Age-Adjusted Gradient • Alveolar ... Disease and more • Diffusion ... #AA #Gradient #alveolar ... Hypoxia #hypoxemia #differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Dyspnea - Differential ... Pericardial • Effusion ... Distention Pulmonary Alveoli ... #Dyspnea #SOB #Differential
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Chronic Shoulder ... Pain - Differential ... tests for the AC ... Shoulder #Pain #Differential ... Diagnosis #Algorithm #MSK
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Causes of Dyspnea - Differential ... flare, Pleural effusion ... Tumor, Pleural effusion ... , Intracardiac shunt ... #Causes #Differential
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea - Differential ... cava syndrome • Shunt ... Bronchitis • Chronic ... Pleura: • Pleural effusion ... 2LmUODZ #Dyspnea #Differential
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
- Markers and Differential ... T-cell - CD7, CD3 Chronic ... Pseudo Pelger-Huet ... Amy Chung, MD, MSc ... hematology #Markers #Differential
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... suggested by warmth, effusion ... the morning • Effusion ... #Joint #pain #Differential ... #Diagnosis #MSK