How do you determine if your rate is blended or straight? Hopefully this post help shed some light on the subject.
Federal law under the Fair Labor Standards Act (FLSA) requires employers to pay a premium of one and one-half times the regular rate for all hours worked over 40 in a workweek (a defined, seven-consecutive-day period), but does not require this premium pay (overtime) for daily overtime or simply because an employee works on a Saturday, Sunday or a holiday. This would fall under the straight pay rates.
However, Alaska, California, Nevada, Puerto Rico and the Virgin Islands all have daily overtime laws for working over eight hours in a day. Colorado has daily overtime laws for working over 12 hours in a day. Since Nurses work 12 hour shifts, if you take assignment in one of these listed territories the rates will be blended pay rates.
If you would like some light reading or enjoy looking at colorful maps, please click here for more information on the subject: https://www.dol.gov/whd/minwage/america.htm