Brain stem stroke:

In a down-and-under pathway from a frontal-impact crash, the most forceful impact to the body is to the:

A) head and neck. B) chest C) arms and shoulders. D) legs and hips.

A 4-year-old child remains in supraventricular tachycardia following an initial dose of adenosine. The appropriate second dose of adenosine for this child is:

A: 4.1 mg. B: 5.5 mg. C: 2.3 mg. D: 3.2 mg.