The SA node initiates an impulse between 50 to 75 times per minute.

Verifying medical necessity of tests and procedures ordered during an inpatient hospitalization is called _______________

A) concurrent review B) ?coinsurance C) gatekeeping D) ?credentialing

Shallow breathing that results in hypercapnea is called

A) labored breathing B) hypoventilation C) hyperpnea D) hyperventilation