Your patient is a 68-year-old male complaining of difficulty breathing for two days. He is sitting up, conscious, alert, and oriented and appears to be in mild respiratory distress. Physical examination reveals cool, dry, pink skin; he is thin with well-defined accessory muscles, and you note diffuse wheezing to all lung fields. HR = 102, BP = 136/96, RR = 20, SaO2 = 92%. The patient gives a 20-pack-a-year history of smoking. These findings are most typical of:

You have arrived at the scene of an industrial accident in which a 22-year-old man has fallen a significant distance. He is not responsive and is snoring. You should first:

A) turn the patient onto his side. B) push the forehead back and lift the chin. C) apply oxygen by way of a nonrebreather mask. D) place your fingers behind the angles of the jaw and lift it.

After instruments have been removed from the ultrasonic cleaner, they ___________

a. should be rinsed and dried b. are disinfected c. are sterilized d. must be cleaned by hand scrubbing