Definition. A nuclear stress test measures blood flow to your heart at rest and while your heart is working harder as a result of exertion or medication. The test provides images that can show areas of low blood flow through the heart and damaged heart muscle.
Lesson at a Glance Outline. Chapter 1, Lesson 2: California's Regions (pp. 12-18) I. Four Regions. A. California's four main regions -- the coast, the Central Valley, the mountains, and the deserts -- each have features that set it apart from the other areas. b. Each region offered early settlers different challenges and advantages.
The State of California is a state located in the western Pacific region of the United States. The state was the 31st admitted to the Union, and currently ranks as the most populous. It is bordered by Oregon to the north, Nevada to the east, and Arizona to the southeast in the United States, as well as Baja California in Mexico to the south. California's capital city is Sacramento, with the four largest cities being Los Angeles, San Diego, San Jose, and San Francisco.