NCLEX-RN questions on emphysema 1

The arterial blood gasses of a patient with severe chronic obstructive pulmonary disease (COPD) are: $\text{pH}\,\ 7.34,\,\ \text{PaO}_2\,\ 80\,\text{mmHg}$start text, p, H, end text, space, 7, point, 34, comma, space, start text, P, a, O, end text, start subscript, 2, end subscript, space, 80, start text, m, m, H, g, end text, $\text{PaCO}_2\,\ 47 \,\text{mmHg,}\,\text{HCO}_3\,\ 28\,\text{mEq/L}$start text, P, a, C, O, end text, start subscript, 2, end subscript, space, 47, start text, m, m, H, g, comma, end text, start text, H, C, O, end text, start subscript, 3, end subscript, space, 28, start text, m, E, q, slash, L, end text. Based on these findings, what is the priority action of the nurse?