What part of the cardiac electrical conduction system initiates electrical impulses at the slowest rate?

The major reason for firefighters to enter a burning building being demolished is to:

A) control fire spread. B) protect neighboring structures. C) check for unauthorized scavengers. D) rescue injured demolition workers.

Which drug is used to reverse the effects of narcotics given during a surgical procedure?

a. Sublimaze b. Narcan c. Sufenta d. Romazicon