Final answer:
B.WBC count 2,000/mm3. A potential complication in aplastic anemia is indicated by a low white blood cell count (WBC count), as it makes individuals more susceptible to infections.
Step-by-step explanation:
The nurse is reviewing the laboratory results of a client with aplastic anemia and is looking for potential complications. Aplastic anemia is a condition where there are deficient numbers of RBC stem cells, which can lead to various complications.
In this case, the potential complication would be a low white blood cell count (WBC count). The normal range for WBC count is 4,500 to 11,000 cells/mm3, so a count of 2,000/mm3 indicates a decrease in WBCs and can make the client more susceptible to infections.
Therefore, the finding of a WBC count of 2,000/mm3 indicates a potential complication for the client with aplastic anemia.