A nurse reviews the laboratory data for an older patient. The nurse would be most concerned about which finding?
a. Hematocrit of 35%
b. Hemoglobin of 11.8 g/dL
c. Platelet count of 400,000/µL
d. White blood cell (WBC) count of 2800/µL
ANS: D
Because the total WBC count is not usually affected by aging, the low WBC count in this patient would indicate that the patient's immune function may be compromised and the underlying cause of the problem needs to be investigated. The platelet count is normal. The slight decrease in hemoglobin and hematocrit are not unusual for an older patient.
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