What is the minimum pressure required to vibrate the vocal cords and produce a quality voice?

Mrs. Baker fell in her home and lay immobile until the next day when her daughter found her lying on the tile floor. You recognize that Mrs. Baker is at a greatly increased risk of:

A) hypokalemia. B) fibromyalgia. C) renal failure. D) rhabdomyolysis.

The result of answering the phone while carrying out another task is 

A. possible errors in message taking. B. efficiency in completing two tasks. C. to prevent other office personnel from feeling they have to do your job. D. communicating to the patient that you are busy.