31 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... • Interstitial lung ... Malformation • Severe Pneumonia ... Hypoventilation Syndrome ... Diagnosis #Algorithm #Causes
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
obesity-hypoventilation syndrome ... direction leads to hypoxemia ... • Causes: Pneumonia ... hepatopulmonary syndrome ... Respiratory #Failure #hypoxia
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
: • 3 syndromes ... • CT: Halo sign ... factor • May cause ... , pleural effusion ... Infections #HIV #AIDS #pulmonary
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... infections according to CT-scan ... myelodysplastic syndrome ... Aspergillosis PLEURAL EFFUSION ... #Lung #Infections
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Ultrasound Findings ... pleura reflection) Pneumonia ... pleura in severe cases ... Respiratory Distress Syndrome ... #POCUS #ultrasound
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Effusion - Differential ... Pneumonectomy • Trapped lung ... Infectious: • Pneumonia ... Malignancy • Pulmonary
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
disease - Renal ultrasound ... Duplex Doppler ultrasound ... MRA; abdominal CT ... • Cushing’s syndrome ... Mineralocorticoid excess syndromes
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Atelectasis, ARDS, Pneumonia ... , Interstitial Lung ... #Hypoxia #hypoxemia
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Respiratory Distress Syndrome ... leading to increased pulmonary ... congestion with hypoxemia ... be detected on CT ... oxygenation in pneumonia
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Causes of Dyspnea ... Superior vena cava syndrome ... Parenchyma: • Pneumonia ... • Interstitial lung ... Pleura: • Pleural effusion