A nurse notes that a child has clubbed fingernails. Which laboratory finding would the nurse correlate with this assessment?
A.
Hemoglobin: 16 g/dL
B.
PaCO2: 43 mm Hg
C.
PaO2: 72 mm Hg
D.
White blood count: 8,500 mm3
ANS: C
Clubbing of the fingernails is associated with chronically low oxygenation. A PaO2 of 72 mm Hg is low. The other values are normal.
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