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URI Flag


The URI flag in this specimen indicated that there was an abnormality detected in the upper region of the platelet cluster. The 0º/RBC 10º scatterplot demonstrated the presence of large platelets and this was in agreement with the MPV of 10.0 fL. The RBC are microcytic and hypochromic, but despite the small volume of the RBC, the separation between the RBC and PLT cluster was still perfect.


This picture may be compatible with reactive platelets that are generally larger than normal, in combination with a disorder of microcytic RBC, probably thalassemia trait.

Numerical Results

WBC 7.20 10e3/μL
NEU 4.179 58.081 %
BLST 0.00 0.00 %
MONe .520 7.22 %
EOS .179 2.48 %
BASO .090 1.26 %
LYM 2.223 30.93 %

RBC 5.84 10e6/μL
HGB 10.5 g/dL
HCT 35.6 %
MCH 18.0 pg
MCHC 29.6 g/dL
RDW 12.8 %

PLT 221.* 10e3/μL
MPV 10.0* fL  URI

CELL-DYN Ruby Casebook. URI Flag. 2018. ADD-00005070. p.47
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