PN 177196BB
7-29
DATA MANAGEMENT AND REVIEW
DATA ANALYSIS REVIEW - PLATELET PARAMETERS
7
c. This illustration shows a PLT histogram with a typical platelet size distribution.
2. The PLT histogram provides the information for determining a helpful descriptor of the
platelet population:
a. MPV (Mean Platelet Volume)
b. PDW (Platelet Distribution Width)
3. PLT histogram is also used to determine if a platelet population is typical; if not,
descriptive flagging is generated.
MPV Measurement
1. MPV (Mean Platelet Volume) is measured directly from analysis of the platelet
distribution curve.
2. MPV is displayed and printed in femtoliters (fL).
Note: 1fL = 1µL
3
PDW Determination
1. PDW (Platelet Distribution Width) is determined from the PLT histogram as the width
of the curve between S1 and S2.
a. The illustration that follows shows the area of the PLT histogram that is used to
determine the PDW parameter result.
3
25fL
30
S1 S2
15%
15%
PDW
7615002A
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