What is the signal to the incident commander that the secondary search has been completed?

Dr. Warren Bowman is considered the father of Outdoor Emergency Care because he:

a. was the first program director for the National Ski Patrol. b. co-authored the first ski patrol manual with the American Red Cross. c. founded the National Ski Patrol as a separate entity. d. created the concept of "intermediate" medical care for ski patrollers.

The best way to remove loose interproximal cement on a newly cemented crown is by

using a scaler. using a piece of floss with a knot tied in the middle. using an ultrasonic handpiece. using the air/water syringe.