Is Feticide And Mysoprotol (abortion Pill) Traceable In Your Body?

Is feticide and mysoprotol (abortion pill) traceable in your body?
My sister has got pregnant and found out the baby wasn't her husbands so she's booked into have a termination, in two stages. They give her an injection to stop the heart beat and a pill. She wants to know of she goes to hospital with her husband are the hospital going to know if they take blood or examine get that's what's happened and tell her husband?