O Troubleshooting

What Do I Do When There Is a Drastic Change in a Patient's Differential Results During the Same Shift?

A 47-year-old male patient recovering from bacterial meningitis was having his blood drawn on a daily basis for CBCs. His sample was received in the morning with the morning draw at 8 a.m. (see the chart). Later in the day, the technologist received another request for a CBC on the same patient and noticed quite a difference in the automated differential. The RBC, Hgb, Hct, MCV, and RDW all resembled the first sample from the a.m. draw. The technologist suspected that the second sample has been mislabeled. She retrieved both samples and asked the blood bank to perform ABO grouping on the samples. Results are as follows.

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