When a neuron reaches its depolarization threshold, what kind of ion channels open?

During the interview, you should do all of the following EXCEPT:

a. use reporter's name during interview. b. don't look into the camera lens. c. be cautious of background noise. d. watch your posture.

The secondary assessment of a sick or injured child:

A. is a rapid head-to-toe exam to detect life threats. B. should be performed, regardless of the circumstances. C. may not be possible if the child's condition is critical. D. is most appropriate when your transport time is short.