According to ATS recommendations,the acceptable "back pressure" (flow resistance)from a spirometer is less than _____ cm H₂O at _____ L/sec. A) 3.0;7 B) 3.0;14 C) 1.5;7 D) 1.5;14

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The Answer of According to ATS recommendations,the acceptable "back pressure" (flow resistance)from a spirometer is less than _____ cm H₂O at _____ L/sec. A) 3.0;7 B) 3.0;14 C) 1.5;7 D) 1.5;14

According to ATS Recommendations,the Acceptable "Back Pressure" (Flow Resistance)from a Spirometer