12 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Right-to-Left Shunt ... (↑Shunting), ↓Perfusion ... Dead space) • ↓Diffusion ... Hypoxemia #Hypoxia #Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Right to Left Shunt ... - Anatomic Shunt ... Disease and more • Diffusion ... Hypoxia #hypoxemia #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
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... VIQ mismatch and shunt ... gravity-dependent gradients ... pulmonary embolus SHUNT ... Failure #hypoxia #Differential
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
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
1) or anatomic shunt ... Arterial blood gas (ABC ... performed on room air ... 80mmHg or A-a gradient ... older) on room air
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
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
ventilation to perfusion ... aspergillosis - Chronic ... granulomatosis • Abnormal perfusion ... -W237. 10.2214/AJR ... lung #diseases #differential