________ Having problems with language is an early warning sign of Alzheimer's disease

Which of the following modes of ventilation requires the use of a special nasogastric tube that is fitted with an electrode array?

a. High-frequency os-cillatory ventilation c. High-frequency jet ventilation b. Neurally adjusted ventilatory assist d. Adaptive support ventilation

Early dental film required long exposure times because:

a. it was hand-wrapped. b. the emulsion was only on one side. c. glass plates were used as the base. d. the packets were not moisture resistant.