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.
One of those is a blood test that confirms whether a person is seropositive or seronegative. Being seropositive does not mean that you absolutely have RA; it does help determine conclusively that a person has the disease when other tests show a similar outcome. What Does it Mean to be Seropositive? To determine if a person is seropositive for RA, a doctor will order a blood test. The blood test is used to help medical experts find two proteins: rheumatoid factor (RF) and anti-CCP. When either of these proteins are present in the blood test it may indicate that RA is present in the body.