A Hospital Laboratory Technician Is Performing Routine Blood Analysis as Part

A hospital laboratory technician is performing routine blood analysis as part of an inpatient's assessment and is examining the sample in a test tube following processing in a centrifuge and the addition of an anticoagulant. Which of the following observations would the technician most likely interpret as an anomaly?

A) The bottom layer of blood in the tube accounts for around one third of the total volume.
B) The middle layer of cells appears white to gray in color.
C) The top layer of cells is too thin to visualize without microscopy.
D) The yellowish fluid on the top of the sample appears to constitute around one half of the total volume.