Which does NOT drain into the pterygoid plexus?

Which of the following mechanisms may result in a conventional explosion?

A) Fumes B) Dust C) Natural gas D) All of the above

When instructing a patient on how to use a small-volume nebulizer, which one of the following statements would be correct?

A) "Breathe about 20–30 times per minute so the medication gets into your lungs." B) "As I depress the trigger on the canister, take in a deep breath." C) "Take nice slow and deep breaths, and try not to cough the medicine out." D) "It is really important to occasionally cough during the treatment."