During spirometry, the patient must be able to exhale for how long?

_________ the organ system which covers the exterior of the human body in protective tissues including but not limited to the epidermis, dermis, sweat glands, body hair, toenails, and fingernails

Fill in the blank with correct word.

A reference tool that should be placed in every emergency vehicle for use when responding to a possible "hazmat" incident is/are:

A) MSDS sheets from local chemical users and suppliers. B) The Emergency Response Guidebook. C) The Merck manual. D) The Physician's Desk Reference.