[karlkatzke]

While I doubt anywhere but the US or a military battlefield will get hundreds of bullet wound patients at once, it's quite possible to get dozens of patients in one go at any hospital. One memorable story I have been told is a tour bus that overturned on a tight hairpin mountain road. Most tour buses do not have seatbelts. The only hospital within reasonable driving distance got 40 elderly patients with head trauma, multiple broken bones, and exposure. Gunshot wounds are not the only Mass Casualty Incidents that can happen. Think about a riot at an Aussie Rules Football game, for instance...

The article doesn't go into detail about your two areas of concern but does mention two items: Infection control was mostly glove changes. Record keeping was on the triage tags from the MCI; cards are attached to patients and travel with the patient. Yes, both of these are a "bare minimum" effort and may not have been used, but when the priority becomes throughput of a system many features of a system can get dropped and picked up again after the crisis is over.