Case 27

1. Presented by Eric A. Gehrie, MD and prepared by Lorraine N. Blagg, MA, MLS(ASCP)SBB

Clinical Vignette

An elderly adult patient presented at the emergency department for hematuria. The patient had a hemoglobin of 6.2 g/dL, a hematocrit of 18.1%, a total bilirubin of 0.9 mg/dL, a platelet count of 148 K/cu mm, an INR of 1.2, and no growth in the urine culture.

Transfusion Medicine results:

What is the most likely explanation of the patient's results?