SYSMEX KX-21 - Page 242

FUNCTIONAL DESCRIPTION
Sysmex KX-21 Operator’s Manual -- Revised October 1998 9-25
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 two 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: Two 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 two times, this flag is
attached.
• Matching of eight kinds of platelet histogram error flags
Platelet Histogram Error Flag Output
[1] [2]
[1]: Output flag to LCD screen, built-in printer.
[2]: Output flag to serial interface (if incorporated as option).
O : • 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 two or more peaks
: Any of "
O ," "×," and "High" is applicable.
Case
No.
LD UD DW MP PLT PDW MPV P-LCR HOST
1A
1B
1C
2A
2B
2C
3
4
High
High
High
O
O
O
O
O
High
High
High
O
O
O
×
×
O
O
×
O
O
×
O
×
PL
PL
PL
PU
PU
PU
PL
DW
MP
PU
DW
MP
DW
MP
PL
PL
PL
PU
PU
PU
DW
MP
PL
PL
PL
PU
PU
PU
DW
MP
1
1
1
2
2
2
3
4
O
×
Table 9-6-3: Platelet Histogram Error Flags