CST Exam Review Question no. 146 March 16, 2017 By Rana Waqar Leave a Comment Which of the following refers to the flow of air from inside the operating room outward? A. Negative pressure B. Direct pressure C. Laminar air flow D. Reverse air flow Δ For More questions please join Our facebook group: https://www.facebook.com/groups/1424167527615419/?ref=group_browse_new
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