Guide. A cortisol test is done to measure the level of the hormone cortisol in the blood. The cortisol level may show problems with the adrenal glands or pituitary gland.
Berkeley lies within telephone area code 510 (until September 2, 1991, Berkeley was part of the 415 telephone code that now covers only San Francisco and Marin counties), and the postal ZIP codes are 94701 through 94710, 94712, and 94720 for the University of California campus.
The ethnically diverse city of Sacramento is also home to the 916 area code. As one of the original area codes in California, area code 916 was put in place during the 1940s.uality of life is high in the Roseville area code. Most individuals in this portion of the 916 area code enjoy a high income and less than 5% of the population is below the poverty line.