14-44 Sysmex XP-300
Technical Information
Revised October 2012
4. Platelet Histogram Error Flag
When the platelet histogram is not normal, a histogram error flag is added to the corresponding
parameter of the analysis value. Those histogram error flags - used with the particle distribution
analysis unit mounted, are listed in the order of higher priority.
When 2 or more flags are applicable to a parameter, the highest priority flag is used.
PL: Relative frequency for LOWER discriminator (LD) exceeds the range. Probable cause is the
effect of noise and etc.
PU: Relative frequency for UPPER discriminator (UD) exceeds the range. Probable cause is the
effect of platelet agglutination, noise interference, and etc.
MP: 2 or more peaks in histogram
DW: Particle distribution width error for 20% frequency with the peak taken as 100%. When the
20% frequency does not cross the histogram 2 times, this flag is attached.
• Matching of 8 kinds of platelet histogram error flags
Platelet Histogram Error Flag Output
[1] [2]
Case
No.
LD UD DW MP PLT PDW MPV P-LCR PCT HOST
1A High PL PL PL PL PL 1
1B High × PL DW PL PL PL 1
1C High × PL MP PL PL PL 1
2A High PU PU PU PU PU 2
2B High × PU DW PU PU PU 2
2C High × PUMPPUPUPU 2
3 × DW DW DW DW 3
4 × MPMPMPMP 4
[1]: Output flag to LCD screen, printer.
[2]: Output flag to host computer.
: • When analysis results of LD and UD are normal.
• In the case of DW, when PDW could be analyzed.
• In the case of MP, when PLT histogram has a single peak.
High: Frequencies of LD and UD are higher than the range.
×: • In the case of DW, when PDW could not be analyzed.
• In the case of MP, when PLT histogram has 2 or more peaks.
: Any of “ ,” “×,” and “High” is applicable.
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