Indeed most EU ICU services are already usually running at around 90% with the usual issues (including the Flu). And please also do consider that most of theses cases are within the Lombardy region and that most ICU patients are very difficult if not impossible to transfer safely to other regions. While the ICU beds are limited, the amount of ambulances equipped with ICU equipment is probably even smaller (and will also require an ICU nurse+doctor on board during the transfer).