7357 results
Kussmaul's Sign and Friedreich's Sign on Neck Examination

A middle-aged M with unknown PMH presents with dyspnea.
small blue-colored spot ... Friedreichs #Neck #JVP #PhysicalExam ... #Clinical #Video
Oxygen Saturation - Measurement Techniques and Limitations
 • Sp02 - Cutaneous pulse oximeter
 • SaO2 Calculated
Limitations • Sp02 ... pulse oximeter • SaO2 ... ABG device • SaO2
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
measured on ABG) SaO2 ... output) - Low SvO2 ... Low CaO2 → Low SvO2 ... High PaO2, High SvO2
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
oxyhemoglobin saturation (SvO2 ... x 13.4 x Hb x SaO2 ... 13.4 x Hb conc x [SaO2 ... – SvO2]) RA pressures
Central Retinal Artery Occlusion (CRAO)
Clinical:
 • Sudden, painless, complete loss of vision 
 • Pale retina
Occlusion (CRAO) Clinical ... • Cherry red spot ... CRAO #Diagnosis #Clinical
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
Positive "spot sign ... Occlusion #Embolus #Clinical
Management of Apnea in Procedural Sedation
 • Apnea Definition: The cessation of breathing for more than
desaturations (SPO2
Halo Sign in Basal Skull Fracture

Halo of lighter liquid around blood spot on the cloth indicates
liquid around blood spot ... Basilar #Trauma #Clinical
Respiratory Oxygenation Cycle - Pathophysiology
PO2 and PCO2

By @rev.med

#Respiratory #Oxygenation #Cycle #circulation #pathophysiology
Pathophysiology PO2
Mechanical Ventilation: The Basics
In the most basic sense, ventilator modes are defined by their control variable
ladder, FiO2: goal spO2 ... ladder, FiO2: goal spO2 ... -8, FiO2: goal spO2