Even hospital's 12 hour shifts bug me.
Some days I work 12 or so hours, and I'm only more productive near the end because I'm by myself and not bothered by emails and other people.
Hatedialysis2 makes a great point CMS and state laws require minimum staffing and it must include a nurse on duty if a patient is being treated. My understanding is that the facility must have a charge nurse to oversee all patient care. I can't see how a patient can be left alone with a tech and meet the staffing requirements.
I come off at about 6:40 to 7:20, the only nurse takes a break at around 6:30 so its fairly common that I'm coming off about then without a nurse.
There is no nurse on the shift? Is that legal? Are you the only patient that this tech has under his care?