81 results
Intraoperative Hypertension - Guidelines for Crises in Anaesthesia
Hypertension is most commonly due to inappropriate depth of
problem in adequate oxygen ... stimulus. ❷ Adequate oxygen ... check measured FiO2 ... Breathing - exclude hypoxia ... Anesthesiology #Anesthesia
Intraoperative Hypoxia / Desaturation / Cyanosis - Guidelines for Crises in Anaesthesia
Using these steps from start
Intraoperative Hypoxia ... ❶ Adequate oxygen ... AND give 100% oxygen ... check measured FiO2 ... Management #Workup #anesthesia
Cardiac Arrest - Guidelines for Crises in Anaesthesia

The probable cause is one or more of: something
). ❷ Adequate oxygen ... flow, give 100% oxygen ... check measured FiO2 ... 4 H’s, 4 T’s: Hypoxia ... Anesthesiology #Anesthesia
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
- insufficient oxygen ... - low oxygen in ... ) PIO2 - atmospheric ... oxygen (how much ... PAO2 - alveolar oxygen
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
Hypoxemia vs Hypoxia ... Hypoxemia - Partial ... pressure of arterial oxygen ... - Insufficient oxygen ... without hypoxia
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Mask Oxygen Delivery ... Flow 6-10 LPM • FiO2 ... small valve to mix oxygen ... increases delivered oxygen ... nickmmark #Mask #Oxygen
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Oxygen Delivery ... high percentage FiO ... set to desired FiO2 ... deliver desired FiO ... #FiO2 #Pulmonary
Oxygen Delivery Systems and Approximate FiO2:
#Management #SupplementalO2 #Oxygen #Delivery #Devices #Interface #FiO2 #NonRebreather #HFNC #NasalCannula #Simple
Oxygen Delivery ... and Approximate FiO2 ... SupplementalO2 #Oxygen ... Devices #Interface #FiO2
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
Oxygen Delivery ... - 6 L/min • FiO2 ... - 10 L/min • FiO2 ... - 15 L/min • FiO2 ... rishikumarmd #Oxygen
Coronary Oxygen Balance 

Myocardial Oxygen Demand <-> Coronary Artery Blood Flow <-> Oxygen Availability

#cardiac #oxygen #pathophysiology
Coronary Oxygen ... Myocardial Oxygen ... Blood Flow <-> Oxygen ... Availability #cardiac #oxygen ... pathophysiology #anesthesia