To get an appt tomorrow, I'll have to ring up tomorrow. There's only the answering machine (that doesn't take messages, just has a message) today. There's no way I could have a blood test today with no doctor to authorise it.
So, I'll ring up first thing tomorrow morning. But, again being Tuesday, the doctor will be in a neighbouring town in the morning and will come to this town in the afternoon.
They don't do bloods in the afternoons. Only mornings.

See why I hate small towns!?!?