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http://www.centerforhealthsecurity.org/our-work/events/2018_clade_x_exercise/pdfs/Clade-X-ventilator-availability-fact-sheet.pdf
We are in deep, deep shit on ventilators, no, deep, deep, deep shit.
Virtually every COVID death is going to be a vent candidate, at least before brutal triage screening out the old and sick. Mechanical ventilation may save three fourths of the people placed on it. Time on vents in Acute Respiratory Distress Syndrome may be days, even weeks, in severe cases.
Other options, like BiPap, present severe aerosol risk an aren't as effective. ICU workers will be in FULL PPE gear their whole shifts, very fatiguing. Assuming there are enough PAPR's, N95's, gowns and gloves. ECMO, which is something like the bypass machines used in heart surgery, adds oxygen to blood as it circulates outside the body. The uber rich and powerful will have access to the small number of units available.
The US has about 20 vents per 100,000 people, 200,000 or so, at most. That's enough for 0.02 percent of the population.
The US is FAR better off than other countries with socialized medicine. A number of them have less than half as many vents as the US.
Caveat, vents are worthless without beds and nurses and doctors, we will probably be hurting there too.
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