Pre-qualifications are typically borrower specific - not State specific. However, as a number of other responders have noted...occupancy status, employment, and/or other costs could have an affect on debt rations and/or loan options that could change your financing.
If you currently live and work in CA but decide to purchase a home in Nevada...possible questions to consider:
Would the home in Nevada be your primary residence? If not, what living expenses will you still have in CA that could affect your debt ratios for qualifying? And, if not your primary residence, the loan would require a minimum of 10% down payment as a 2nd home or 20% down as a rental / investment property.
If the new home in Nevada would be your primary residence...would there be a change of employment and/or monthly income that would need to be considere?
In any case, I would encourage you to select a lender that has experience in lending outside of their local service area. I have been asked to save a number of real estate transactions due to appraisal issues and/or ongoing delays by Lenders not familiar with the area you may be interested in.