Track your blood counts


Enter your latest laboratory blood test result for the specific blood cell type below. Be sure to select the date of the test by using the calendar feature below.

Haematocrit (HCT), or packed cell volume (PCV)


White blood cell (WBC) count, or leukocytes


Haemoglobin (Hgb)


Platelet count


Select date of test

blood counts
Your blood counts have been saved

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Actively track your blood counts and discuss how they compare with your target blood levels

Your blood counts, particularly haematocrit (HCT), white blood cells (WBCs), haemoglobin (Hgb), and platelets, offer important information about the status of your polycythaemia vera (PV). Talk to your healthcare provider about your results after each blood test and discuss how your individual blood results compare with your target blood levels.

The following questions may help you discuss your blood counts with your healthcare provider:

  • What are my target levels for HCT and WBCs?
  • What are my management options if my HCT or WBCs are above the target level?
  • What other factors might influence my blood test results?
  • Why is it important to monitor my blood cell counts to keep PV controlled?
  • Why is it important to know if my blood cell counts are above the target level?

This web application is intended for use as a resource and diary tracker for patients with myelofibrosis, polycythaemia vera, or essential thrombocythaemia . Information provided on this web application, including outputs from its interactive features, should not be considered an alternative to medical or management advice from your healthcare provider team.

This tool helps you track aspects of
your polycythaemia vera (PV), so you
are prepared for discussions with your
healthcare provider and have a record
of your disease status over time.

Score your symptom severity as often
as you would like. Enter your blood test
or phlebotomy results as needed, after
each procedure.