This VIE is essentially a large thermos flask/ vacuum insulated cylinder at -180C
O2 is supplied from (typically) BOC in liquid form; when required, allowed to evaporate into gas, & supplied to hospital outlets.
Most hospitals have a VIE big enough to meet their needs
2/n
The problem is the pipes
Most ~12 bed ICUs have pipes that allow ~400L/min flow
This is Ok because most ventilators don’t use >20l/min; giving useful buffer capacity
Modern non invasive ventilation systems- CPAP, NIV, and High flow nasal Oxygen (HFNO), however, need more
3/n
I saw him first on my evening rounds.
A tall, strong man around 60, He’d just come back from major bowel surgery
An epidural top-up helped with pain, and put a smile on his face, and his wife’s
They were very pleased at the lack of a colostomy too
Thread...
1/n
Around 2AM, he went wild.
Trying to pull out lines, hit nurses, run away
Screaming we were going to catch him, kill him and he wanted to go home
He was a danger to himself- was on strong medication to keep his blood pressure up, and had lines and drains
2/n
Took 4 people to hold him down so he could have sedation
ICU delirium is unfortunately very common, and we don’t always know what causes it. However, some risk factors are known- sedation, sleep disturbance, noise, being unwell, bright lights at night, etc.
3/n