Whistling sounds heard on exhalation is known as:

The principles of the paralleling technique include each of the following except one. Which one is the exception?

A) The image receptor is placed parallel to the long axis of the tooth of interest. B) The central ray of the x-ray beam is directed perpendicular to the tooth and to the image receptor. C) The central ray of the x-ray beam is directed at a plane halfway between the long axis of the tooth and the long axis of the image receptor. D) Parallel placement of the image receptor is accomplished using an image receptor holder.

Which of the following might result in a drug interaction that can cause a dangerous hypertensive crisis, possibly leading to stroke or death?

A. Inderal and Proventil B. MAO inhibitor and aged cheese C. Valium and alcohol D. Grapefruit juice and Nifedipine E. Acetaminophen and codeine