What is the heart rate in beats per minute (bpm) for a patient with 20 heartbeats in 15 seconds?

Which type of headache is characterized by very severe, unilateral pain in the orbit, forehead, or temple?

A) Migraine B) Cluster C) Tension D) All of the above

An example of a local infection is a(n) ____________________.

Fill in the blank(s) with the appropriate word(s).