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).
A chinchilla with good diet and husbandry can remain in your family anywhere for over 20 years with average life spans over 10 years. The average male chinchilla weighs between 400-500 grams, while the females can reach 600 grams. Chinchillas love to play and require lots of attention from their owners.