Knowledge Check

What is a “platelet millionaire”?

a
A case in which the patient won the lottery
b
A case in which one million platelets are being produced every second
c
A case in which the platelet count is > million x 10^9/L
d
A case in which the platelet count is > million/microliter
Yes! We now routinely talk about platelet counts as 10/L. The millionaire refers to a time when the platelet count was expressed per microliter.

The original description of platelet millionaire:

Lancet 1980;2(8190):372-3.

Sort conditions (on top) to appropriate buckets (on bottom)

Irritable bowel syndrome
Guillain Barre syndrome
Congestive heart failure
CML
Inflammation
Iron deficiency
Bleeding
Cirrhosis
Infection
Hemolysis
Aortic stenosis
ET
Hypothyroidism
MDS/MPN-RS-T
Surgery
PV
Mutated TPO-R
Cancer
Primary thrombocytosis
Secondary thrombocytosis
No link to thrombocytosis

Abbreviations, ET, essential thrombocythemia; PV, polycythemia vera; CML, chronic myelogenous leukemia; MDS/MPN-RS-T, myelodysplastic syndrome/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis; TPO-R, thrombopoietin receptor.

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