I'm a new nurse in an outpatient dialysis center, less than a year. We are short on regular nurses in the unit and sometimes I'm the only nurse opening the unit with 3-4 PCTs for 24 patients. The other nurse comes in 2-3 hours later or the other nurse calls out. I'm not comfortable with that and I have told my nurse manager many times already. Is it alright to wait for the other nurse before putting patients on the machine?