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 It Is Done. A bone scan is done to: 1  Find bone cancer or determine whether cancer from another area, such as the breast, lung, kidney, thyroid gland, or prostate gland, has spread (metastasized) to the bone. 2  Help diagnose the cause or location of unexplained bone pain, such as ongoing low back pain.uring a bone scan, a radioactive substance called a tracer is injected into a vein in your arm. The tracer travels through your bloodstream and into your bones. Then a special camera takes pictures of the tracer in your bones. Areas that absorb little or no amount of tracer appear as dark or cold spots.