Hope that's a wake up call for all these "I want a black doctor and black nurses" folks. There are a LOT of terrible nurses and MAs and the common denominator is that they despise black patients, poor white patients, and immigrants. They will treat you bad based on experiences they've had with "ghetto" mothers, absent fathers, bad kids, etc. If you're a black woman they will ignore your pain. If you can't speak English they will be exasperated with you. If you're a black man they will despise you.
This isn't all or even most nurses and MAs. But there are bad ones at many if not most hospitals, and depending on how many you get can be life or death.