Skip to Content

February 2018 — Core Lab Services

​A 36-year-old male presented to the clinic for routine warfarin monitoring. Blood was drawn for prothrombin time testing. In the lab, a medical technologist noted that the volume of packed red cells appeared higher than normal. The estimated hematocrit value was 57% (reference interval = 38.8% - 50.0%). A review of past hematology results for the patient showed that his hematocrit had been increasing over the past nine months.

Your Score:  

Your Ranking:  

  Kendall Cradic, Ph.D.
Fellow, Clinical Chemistry
Mayo Clinic
Assistant Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine
  Nikola Baumann, Ph.D.
Consultant, Clinical Core Laboratory Services
Mayo Clinic
Assistant Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine
MCL Education

MCL Education

This post was developed by our Education and Technical Publications Team.