When the respiratory system cannot effectively eliminate all the carbon dioxide generated through metabolic activities in the peripheral tissues, this causes:

Digital subtraction radiology meets which of the following objectives?

A) Detects small changes in osseous loss B) Detects changes in the periodontal ligament space C) Determines alveolar crestal bone level over different times D) Reduces image time

Urgently needed care is defined in the Medicare program as

A. an unexpected illness or injury that requires immediate treatment. B. a chronic illness that has suddenly become an acute condition. C. a life or death situation. D. a life-threatening injury that needs emergency room care.