Apparatus with air brakes are to be equipped with an air pressure protection valve that prevents air horns from being operated when the air pressure in the air reservoir drops below:

Low-level laser would be contraindicated for application over

A) photosensitive skin B) hemorrhagic areas C) cancerous tissue D) all of the above

A patient who has been stung by a honeybee comes to the office to have the stinger removed. What is the appropriate way to remove the bee stinger?

A. Use your fingers to pull out the stinger B. Take it out with a pair of tweezers C. Scrape the skin with a credit card or flat, hard, sharp object D. Call the physician immediately; only the physician can remove a stinger E. Squeeze the skin near the stinger between your thumbs