Mri Clinics How Will The Injection For My Mri Be Given To Me?

How will the injection for my mri be given to me? - mri clinics

I get a second MRI done (was not the first injection in a clinic.) What does the doctor to another, but this time with a syringe. in the clinic held for children, because I'm only 13th MRI is on my right shoulder.
I have a needle or IV?
Am I obligated to spend the day in the hospital before hand, because my father had cancer when he spend the day, because after the injection through your body get.
History of the MRI before injection?