At what age do pulmonary volumes and expiratory flow rates start to decrease?

A local university states they have a WAN network. What does this mean?

A. The computer network connects the various campus sites and perhaps the city. B. The computer network connects geographically widely separated sites, such as cities, countries, or even continents. C. The computer network connects only a small area, such as adjacent areas or buildings.

Mr. Thompson is a cardiology patient who says he has had episodes of his heart "racing" unexpectedly, even when he is sitting down and even a few times while he was sleeping. The cardiologist has performed a stress test and found no abnormalities. Which of the following tests would you expect the cardiologist to order next?

A. CABG B. Angiography C. Cardiac catheterization D. Chest X-ray E. Holter monitor