___________ filtered air enters the operating room ceiling vents and is combined with _________ air in the room
A. Laminar; pressure C. Existing; negative
B. Fresh; existing D. Positive; laminar
ANS: B
Health Professions
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Which of the following organs is NOT part of the digestive system?
A) Liver B) Spleen C) Stomach D) Pancreas
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In third-degree AV block, the site of the block is either the
A) AV node or the Purkinje fibers. B) bundle branches or the AV node. C) sinus node or the AV node. D) sinus node or the internodal tracts.
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