ABN stands for Advanced Beneficiary Notification. An ABN must be signed prior to providing a Medicare service or test to document that the patient is willing to assume responsibility for payment of services that Medicare may not cover when subject to either National or Local Coverage Determinations (NCD) or (LCD).
Chinchillas are crepuscular (most active around dawn and dusk) rodents, slightly larger and more robust than ground squirrels. They are native to the Andes mountains in South America and live in colonies called  herds  at high elevations up to 4,270 m (14,000 ft).
Chinchilla Treats. Chinchillas should be given very little in the way of treats (never more than a teaspoon a day). Raisins and dried fruit are favorites but are also high in sugar so they should be fed in very small quantities and infrequently. Try not to feed more than 3 or 4 raisins per week.