I’m going to tag this as a little tutorial for @MichaelYeadon3 who keeps saying that there’s no problem from the suppliers of medical ‘gasses’

Most hospitals in the U.K. run their O2 supply from a Vacuum Insulated Evaporator (VIE)

https://t.co/Lu9ktGFSSm

1/n

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
A typical patient on HFNO will have 60-80Lmin flow. If they’re on 90% O2, that’s 60L O2 for 1 patient

6 of these patients will come very close to triggering the O2 flow alarm for this 12 bed unit.

4/n
Aside from breaking walls and re engineering the O2 supply for the whole hospital there’s no easy way of solving this problem
5/n
The next question being asked is ‘can’t we use ‘oxygen bottles’

A typical F cylinder has 1360 litres Oxygen. And weighs 18KG.
That will last ~22 minutes for a patient on HFNO

That’s 72 cylinders per patient per day.

That’s not how you can run a service.

6/n
Then you come to cost.

These 72 cylinders cost approx £2000. That’s ~20x more than liquid O2 in a VIE.

Typical ICU tariff for a L2 patient is <£1500!

7/n
many hospitals (including mine) have had to plan around O2 supply (flow) and scatter patients- this leads to inefficiencies of dispersal if you have say 3-4 areas with 6-8 patients in them rather than one area with 30

Leads to problems with staffing and cover for safety

8/n
So what I’ve tried to explain is that when hospitals report they’re running out of O2, the problem doesn’t lie with suppliers of liquid O2. Don’t ask them if there’s a shortage.

The problem is infrastructure and old estate.

Please stop this misinformation.

9/n
TLDR: there isn’t a problem with O2 supply from manufacturers. It’s a problem with old estate and infrastructure in the hospital buildings

10/10
@iceman_ex @rupert_pearse @ShaunLintern @BBCHughPym @sbattrawden @charlot_summers @SepsisUK

More from Health

🚨Important changes to lockdown/self-isolation regulations from 5pm

The Health Protection (Coronavirus, Restrictions) (All Tiers and Self-Isolation) (England) (Amendment) Regulations 2021

£800 'house party' FPN & police can now access track & trace data

https://t.co/k9XCpVsXhC


“Large gathering offence”

As trailed by Home Secretary last week there is now a fixed penalty notice of £800 (or £400 if you pay within 14 days) for participating in an gathering of over 15 people in a private residence


Fixed Penalty Notices double for each subsequent “large gathering offence” up to £6,400

Compare:
- Ordinary fixed penalty notice is £200 or £100 if paid in 14 days
- Holding or being involved in the holding of a gathering of over 30 people is £10,000


Second big change:

Since September has been a legal requirement to sell-isolate if you test positive/notified by Track & Trace of exposure to someone else who tested positive

Police can now be given access to NHS Track & Trace data if for the purpose of enforcement/prosecution


This will make it easier for police to enforce people breaking self-isolation rules. Currently there has been practically no enforcement.

Data says only a small proportion of people meant to be self-isolating are fully doing so.
Thread on how atheism leads to mental retardation (backed with medical citations🧵💉)

To start with, atheism is an unnatural self-contradicting doctrine.

Medical terminology proves that human beings are naturally pre-disposed to believe in God. Oxford scientists assert that people are "born believers".

https://t.co/kE0Fi588yn
https://t.co/OqyXcGIMJn


It should be known that atheism could never produce an intelligently-functioning society and neither ever will.

Contrastingly, Islam produced several intellectuals & polymaths, was on the forefront of scientific development, boasting 100% literacy


It is also scientifically proven that atheism led to lesser scientific curiosity and scientific frauds, which is also why atheists incline to pseudo-science.

Whereas, religion in general and Islam in particular boosted education.

https://t.co/19Onc84u3g


Atheists are also likely to affected by pervasive mental and developmental disorders like high-functioning autism.

Cognitive Scientists and renowned Neurologists found that more atheism is leads to greater autism.

https://t.co/zRjEyFoX3P

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