Perox Power Low (Px-Pl, Px); Perox Saturation (Px-Sat, Xs) - Siemens ADVIA 2120 Operator's Manual

System Related
1. Check perox reagents.
2. Check peroxidase hydraulics and sample
delivery.
3. Check delivery of SHEATH/RINSE.
4. Check PEROX SHEATH delivery.
5. Check the pressure and vacuum readings.
6. Check the perox reaction chamber
temperature.
7. Check perox flowcell alignment.
8. Check perox gains.

Perox Power Low (PX-PL, PX)

Definition
The Perox Power Low flag is triggered if the tungsten-halogen light intensity in
the Perox channel is less than 90.
Results Flagged
WBCP, %NEUT, #NEUT, %LYMPH, #LYMPH, %MONO, #MONO, %EOS,
#EOS, %LUC, and #LUC
Corrective Action
1. Perform the sheath reagent check.
2. Check perox lamp alignment.
3. Replace the tungsten-halogen lamp.

Perox Saturation (PX-SAT, XS)

Definition
The Perox Saturation flag is triggered if the events counted in the Saturation area
are more than 10% of Perox signals
The Saturation area of the Perox cytogram is located in channels 97 through 99
on the x axis.
6-38
Sample Related
•
Neonatal samples
•
Aged blood sample
•
Malaria parasites
•
Lyse-resistant RBCs
Flags