A dream of machines with no dials

I'm standing at the head of the bed, about to induce, and the machine in front of me has no dials. Just a flat screen showing the patient's face, calm, mouthing something I can't read. I keep reaching for a knob that isn't there, and she keeps waiting, patient, not worried at all. Woke up with my hand still fumbling the air, like I'd been trying to tune a radio in a silent room.