Which of the following agents is MOST likely to produce blistering?

You are involved in the initial response to a nuclear detonation. Which of the following will likely be an early priority in managing this incident?

A) Determining who is responsible for the attack B) Moving survivors into structures to protect them from fallout C) Administering medications designed to mitigate the effects of radiation D) Keeping responders away from the area to prevent radiation poisoning

P waves usually appear before:

A) upright waves. B) QRS complexes. C) PR intervals. D) T waves.