Dark chocolate colored much like a Yorkie sort of breed Newer info--The dog, Toto, in the movie is a small Cairn Terrier and his color is a grizzled gray. In the book, Totâ¦o is actually a Yorkshire Terrier-a.k.a. Yorkie.
Why It Is Done. An arterial blood gas (ABG) test is done to: 1  Check for severe breathing problems and lung diseases, such as asthma, cystic fibrosis, or chronic obstructive pulmonary disease (COPD) .2  See how well treatment for lung diseases is working.3  Find out if you need extra oxygen or help with breathing (mechanical ventilation).n arterial blood gas (ABG) test is done to: 1  Check for severe breathing problems and lung diseases, such as asthma, cystic fibrosis, or chronic obstructive pulmonary disease (COPD) .
Why a PET Scan Is Performed. Your doctor may order a PET scan to inspect the blood flow, oxygen intake, and metabolism of your organs and tissues. PET scans are most commonly used to detect cancer, heart problems, brain disorders, and problems with the central nervous system.