I almost had to defer a procedure for one of my cats because my vet’s systems were all down. This meant they couldn’t process payments, schedule appointments, use their X-ray machine, or dispense prescriptions. (Thankfully, they had the ingenuity to get their diagnostic equipment online through other means, and our prescriptions had already been dispensed so we didn’t have to reschedule.)

I would imagine it’s the same story at human hospitals too that ran afoul of this. I wouldn’t expect life-critical systems to go offline, but there’s many other more mundane systems that also need to function.