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 PET scans are used. An advantage of a PET scan is that it can show how well certain parts of your body are working, rather that showing what it looks like. They're particularly helpful for investigating confirmed cases of cancer, to determine how far the cancer has spread and how well it's responding to treatment.ntroduction. Positron emission tomography (PET) scans are used to produce detailed three-dimensional images of the inside of the body. The images can clearly show the part of the body being investigated, including any abnormal areas, and can highlight how well certain functions of the body are working.