______________ is a characteristic of laser light in which the frequency of each wave is the same

Which of the following statements about lateral impact collisions is TRUE?

A) The substantial lateral crumple zone prevents most injuries. B) Damage to the vehicle is a reliable indication of the seriousness of injuries. C) The degree of injury may be greater than the damage alone would indicate. D) Fatalities are rare because the upper extremities absorb the energy.

In which situation should the heat moisture exchanger (HME) be replaced with a heated humidi-fication system?

a. With all tracheostomy tubes b. After 3 days of ventilation c. After 24 hours of ventilation d. Thick secretions not cleared by suctioning