The nurse is reviewing the results of the patient's diagnostic testing for respiratory function. Of the following results, which finding results fall within normal limits?
a. pH 7.50
b. Arterial oxygen concentration (SaO2) 86%
c. Arterial carbon dioxide tension (PaCO2) 36 mm Hg
d. Arterial oxygen tension (PaO2) 76 mm Hg
C
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A The normal pH is 7.35 to 7.45; the patient's is high at 7.50.
B The normal SaO2 is 98% to 100%; the patient's is low at 86%.
C The normal PaCO2 is 35 to 45 mm Hg; the patient's PaCO2 is normal at 36 mm Hg.
D Normal PaO2 is between 80 and 100 mm Hg; the patient's is low at 76 mm Hg.
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