As a result of the upper airway obstruction and subsequent ventilation-perfusion ratio, the parameters listed below change as follows:A. PA(o2) : ___increased; ___decreased; ____remained the sameB. PA(co2) : ___increased; ___decreased; ____remained the sameC. PC(o2) : ___increased; ___decreased; ____remained the sameD. PC(co2) : ___increased; ___decreased; ____remained the sameE. pH : ___increased; ___decreased; ____remained the same

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