Renal Ultrasound: Sonography of the Kidneys. Review literature: (Singer et al, 2006). Technique of Renal Ultrasound. Sonography of the kidney is best done in supine position and with inspiration of the patient. In adverse conditions, an elevation of the examination side by 30 degrees is helpful.
By Anne Marie Helmenstine, Ph.D. Chemical Change Definition: A chemical change is a process where one or more substances are altered into one or more new and different substances. Also Known As: chemical reaction.
A) A chemical change occurs in which atoms rearrange to form a new compound. B) A chemical change occurs in which an ionic compound is formed from diatomic elements. C) A chemical change occurs in which no atoms rearrange to form a new substance. D) A physical change occurs in which no atoms rearrange to form a new substance.