2549 results
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
Inadequate tissue perfusion ... Pathophysiology #differential
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... (↑Shunting), ↓Perfusion ... Hypoxemia #Hypoxia #Differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Algorithm Ventilation/perfusion ... Hypoxemia #Hypoxia #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... defects) VENTILATION/PERFUSION ... gradients of both perfusion ... with adequate perfusion ... Failure #hypoxia #Differential
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
the Newborn - Differential ... Only: • Poor Perfusion ... Cyanosis #Newborn #Differential
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
PRE-RENAL Impaired perfusion ... Postrenal #Failure #Differential
Transient Monocular Vision loss - Differential Diagnosis
Ischemia	
 - Large artery disease (atherothrombosis, embolus, dissection).
  -
Vision loss - Differential ... decreased nerve perfusion ... Monocular #VisionLoss #Differential
Causes of Falsely Low Oxygen Saturation - Discordant SpO2 & PaO2 
 • Motion
 • Low
Motion • Low perfusion ... PaO2 #diagnosis #differential
It is important to recognize Acute Decompensated Heart Failure (ADHF) as more than just simply a
clinical parameters: perfusion ... Signs of poor perfusion ... Adequate perfusion ... #diagnosis #differential
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
ventilation to perfusion ... granulomatosis • Abnormal perfusion ... lung #diseases #differential