I need to know if a client is Rh neg or pos. which I can find out with a $6. Eldon card. If neg, I need her antibody levels. Rarely, I might recommend an US, but never before 20 wks! If a client appears unhealthy in any way, or her diet is chronically deficient, I might want other tests, but none routine, just as indicated. I do check hemoglobin & blood sugar at home, anything further I would refer to a lab. I know many younger midwives feel more comfortable doing a lot more tests than I do, and if you're in a state that requires midwives to be licensed, they may need to do more testing just to make the powers that be happy.
BTW, I hope you have researched and know what to do to kill off the GBS before they test yo this time!