In a patient with acidosis, the nurse would expect the oxyhemoglobin dissociation curve to shift:
a. to the right, causing more O2 to be re-leased to the cells.
b. to the left, allowing less O2 to be released to the cells.
c. downward, allowing less O2 to dissolve in the plasma.
d. upward, allowing more O2 to dissolve in the plasma.
ANS: A
The oxyhemoglobin dissociation curve is shifted to the right, not the left, by acidosis (low pH) and hypercapnia (increased PaCO2); more, not less, O2 is released to cells. The oxyhemoglobin dissociation curve is not downward or upward, by acidosis.
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