This is the Evelina Children's Hospital where Jack has come to have an MRI scan. MRI stands for 'magnetic resonance imaging' and that means taking pictures of what Jack looks like inside!
Jack's Mum: Hello there, we've come for an MRI scan. Where do we need to go to please?
Receptionist: MRI is on the Arctic Level. Take the lift up to the first floor
Jack's Mum: thank you, come on then Jack.
Each floor of the hospital is named after a different part of the Earth. And downstairs, the Ocean Level, is like a big playground!
Jack's Mum: look Jack, the lift's here. You can press the floor number here
Jack: we went up in the lift. It was like a rocket!
Jack has to go up to the Arctic Level, this is where the MRI scanner is in an area called the North Pole.
Jack's Mum: there we go, we need to go that way. Hello there, my son Jack has got an MRI appointment.
Receptionist: if you'd just like to take seat over there, I'll call them and let them know you're here
Jack's Mum: OK then, do you want to go and play Jack?
Soon it's Jack's turn. First he meets the radiographer who'll take the MRI pictures.
Radiographer: hello, is Jack here?
Jack: we met a lady who took us to the North Pole. There were lots of animals on the walls. Some of the animals even move!
Radiographer: now then, an MRI scanner has a very strong magnet so before you and Jack go into the room. I need you to fill in one of these questionnaires. That'll take a few minutes, then I'll come back and check it for you. They make quite sure the MRI is safe for Jack.
Radiographer: I'll just double check Jack - you haven't got a pacemaker?! No! You've not had any operations on your head? Or on your heart? And no metal work in your body? No, lovely. And Mum you're the same?
Jack's Mum: Yes, all clear.
Radiographer: do you want to come through then? Come and have a look at my machine. Because the MRI is a giant magnet, you can't take anything metal inside.
Jack: I put my metal toys in the locker, then the lady said she would take my picture.
Jack's Mum: I've got to take my metal things off too Jack.
Radiographer: have you got a watch on?
Jack's Mum: I have, yes.
Radiographer: if you look through the machine there Jack, you can see the film playing at the back, and all you need to do is just lie on the bed. Jack: I had to lie on the bed and not move.
Radiographer: OK? I'm going to raise the bed up in the air. I'm just going to shuffle you up the bed a little bit. Now I'm going to pop some headphones on you so that you can listen to the film as well as see it. I'm going to pull this special helmet down over your head. This helps us to get really nice pictures. I'm going to put some little cushions in to help you keep nice and still. Mum, I'm going to give you this buzzer if he looks worried or a bit uncomfortable, just give that a squeeze. OK Jack, I'm going to move you into the machine now, you need to keep very still. I'll talk to you through those headphones as we go along and tell you what's happening. You OK there? Mummy's sitting right here beside you.
Jack: I kept still for half an hour while they took the pictures. Are you OK in there Jack?
Radiographer: Good boy, keep nice and still, the next scan's about to start.
Jack's having his head scanned, but you might have pictures taken of any part of your body!
Radiographer: now, because you did so well, I've got a special sticker for you, shall I put that on your shirt? And also a special certificate - not everybody gets one of these, but that's because you did so well and kept nice and still.
Jack's Mum: what do you say Jack?
Jack: thank you.
Jack's Mum: that was alright wasn't it Jack, wasn't too bad? We'll go and see the doctor soon and get all the results.