In contrast, to detect very small changes in arterial carbon dioxide levels. Because the body cannot detect small change

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In Contrast To Detect Very Small Changes In Arterial Carbon Dioxide Levels Because The Body Cannot Detect Small Change 1 (55.39 KiB) Viewed 46 times

In contrast, to detect very small changes in arterial carbon dioxide levels. Because the body cannot detect small changes in arterial Poz and pH, but can detect small changes in Pcoz it is arterial carbon dioxide levels that primarily determine how much air we breathe in and out (known as minute ventilation). Minute ventilation (l/min) 10- 0 0 Normal resting level 20 40 60 80 100 120 Arterial Poo (mmHg) Graph 1. The effect of arterial Par on minute ventilation Minute ventilation (1./min) 1 5 10 Normal resting level 36 40 44 48 Arterial Peo: (mmHg) Graph 2. The effect of arterial Po on minute ventilation The two graphs above show the effects of Poz and Pcoz on minute Ventilation (the volume of air breathed in and out in in minute). Use the information in the graphs to answer the following questions. What change (increase or decrease) in arterial Poz leads to an increase in minute ventilation? Decrease What change (increase or decrease) in arterial Pcoz leads to an increase in minute ventilation? Increase During normal resting conditions, arterial Pcoz is 40 mm Hg and minute ventilation is approximately 6.5 L/min. If the arterial Pcoz increased by 4 mm Hg, to what approximate value would minute ventilation increase? [Select] During normal resting conditions, arterial Poz is 100 mm Hg and minute ventilation is approximately 6.5 L/min. If the arterial Poz decreased by 4 mm Hg, to what approximate value would minute ventilation increase? [Select]