165 results
Intraoperative Hypoxia / Desaturation / Cyanosis - Guidelines for Crises in Anaesthesia
Using these steps from start
❶ Adequate oxygen ... AND give 100% oxygen ... check measured FiO2 ... Consider potential causes ... POTENTIAL CAUSES
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 ... hypercarbia as causes
Cardiac Arrest - Guidelines for Crises in Anaesthesia

The probable cause is one or more of: something
The probable cause ... ). ❷ Adequate oxygen ... flow, give 100% oxygen ... check measured FiO2 ... 4 H’s, 4 T’s: Hypoxia
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 ... differential #diagnosis #causes
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Uncommon Causes ... - Amount of oxygen ... dissolved in the PaO2/FiO2 ... dyspnea, tachypnea, hypoxemia ... Any opioid can cause
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
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
high percentage FiO ... retention of exhaled gases ... • Uses either ... set to desired FiO2 ... #FiO2 #Pulmonary
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Mask Oxygen Delivery ... A venturi mask uses ... small valve to mix oxygen ... increases delivered oxygen ... nickmmark #Mask #Oxygen
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
Intrapartum Abnormal Fetal HR Tracing - Causes of Variability & Decelerations - Differential Diagnosis Algorithm
Minimal/Absent Variability
Fetal HR Tracing - Causes ... sedatives) • Hypoxic ... bpm): • Mild hypoxia ... maternal arterial oxygen ... Diagnosis #Algorithm #Causes