Perox Temperature Out Of Range (Pxto, Tx); Platelet Noise (Plt-No, Nt) - Siemens ADVIA 2120 Operator's Manual

Perox Temperature out of Range (PXTO, TX)

Definition
The Perox Temperature Out of range flag is triggered if the Peroxidase reaction
chamber temperature is not between 58°C and 72.1°C.
The PXTO (TX) flag is not triggered if agreement between the baso and perox
results is indicated by both the following conditions:
•
WBCB and WBCP agree within specified limits (No WBC-CE flag)
•
[(%NEUT + %EOS) - %PMN] is between 0 and 7.5
Results Flagged
WBCP, %NEUT, #NEUT, %LYMPH, #LYMPH, %MONO, #MONO, %EOS,
#EOS, %LUC, and #LUC
Corrective Action
1. Check the perox reaction chamber temperature.
2. Check the reaction chamber temperature controller, including the electrical
connection.

Platelet Noise (PLT-NO, NT)

Definition
The PLT-NO flag indicates the presence of sample interferences such as
microcytes or RBC fragments that could be counted as large platelets
The PLT-NO flag is triggered under either of the following conditions:
•
LPLT and ANISO flags are triggered (any severity level).
•
LPLT and MICRO flags are triggered (any severity level).
6-40
Normal Sample
RBC Scatter
Platelet Vol
PLT-NO Flag
RBC Scatter
Platelet Vol
Flags