Montana Field Guides. Of the three North American weasels (Genus Mustela), the Short-tailed Weasel is intermediate in size. Males are distinctly larger than females of the same age. During summer the fur is dark brown with white (not buff) under-parts, white feet, and white along the inside of the hind legs. The tip of the tail is black.
There's no single test for Parkinson's disease, but symptoms and response to treatment can guide diagnosis. Symptoms of Parkinson's disease vary from person to person, but they tend to get worse over time. The signs and symptoms of Parkinson's are divided into two categories: motor (movement-related) and non-motor.
brain functions. There is a test that can help show whether there is a loss of dopamine transporters in the brain. Along with other clinical tests, this imaging test can help your doctor determine whether the symptoms are the result of a parkinsonian syndrome (PS) or essential tremor (ET). DaTscan is an imaging drug that will be injected into the bloodstream to help your doctor assess dopamine transporters, which help recycle dopamine, a chemical involved in controlling movement.