UESTION 25 Joe has a redpiration rate of 30bpm and a Vr of 630ml and his anatomi
ID: 213934 • Letter: U
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UESTION 25 Joe has a redpiration rate of 30bpm and a Vr of 630ml and his anatomical dead space air is 150ml. Bill has a respiration rate of 18bpm and a V of 1535ml and his anatomical dead space air is 150ml. Using the formulas for MV, AVR and breathing efficiency, determine who has a more efficient breathing pattern Joe d Joe has a more efficient breathing pattern because he utilizes 76% of the air he breaths in for gas exchange Bill has a more efficient breathing pattern because he utilizes 98% of the air he breaths in for gas exchange Joe has a more efficient breathing pattern because he utilizes 90% of the air he breaths in for gas exchange Bill has a more efficient breathing pattern because he utilizes 76% of the air he breaths in fr gas exchage Bill and Joe have the same breathing efficiency The answer cannot be determined none of the choices are correct QUESTION 26 f air eachanged while breathing is referred to asExplanation / Answer
25. Minute ventilation is the volume of air that can be inhaled or exhaled in a minute.
MV= TV*Rf
TV= Tidal volume (VT) in ml, Rf= respiration frequency or rate (number of breaths per minute)
MV for Joe= 630 * 30= 18900 mL/min= 18.9 L/min
MV for Bill= 1535*18= 27630 mL /min= 27.6 L/min
Alveolar ventilation rate= (Tidal volume- dead space) * Respiration rate
AVR for Joe= (630-150)* 30= 14400 mL/min= 14.4 L/min
AVR for Bill= (1535-150)*18=24930 mL/min- 24.9 L/min
Respiration efficiency (RE)= AVR/MV *100
RE for Joe= 14400/18900 *100=76.19%
RE for Bill= 24930/27630*100= 90.23%
Hence, Bill has a more efficient breathing pattern as he utilizes 90% of the air for gas exchange.
Right option is: none of the choices are correct.
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