Platelet Origin Noise (Pltorn, Ot); Rbc Irregular Flow Rate (Rbcifr, Rr) - Siemens ADVIA 2120 Operator's Manual

Results Flagged
PLT, PCT, MPV, and PDW
Corrective Action
The following conditions may not be the only ones that could cause this flag.
•
Pronounced microcytosis
•
Increased RBC fragments (RBCF)

Platelet Origin Noise (PLTORN, OT)

Definition
The Platelet Origin Noise flag indicates the occurrence of system induced noise
that might affect RBC and PLT results.
The PLTORN flag is triggered when the number of events in the Platelet Origin
Noise area of the PLT cytogram exceeds 2% of the total number of events.
Results Flagged
RBC, MCV, HCT, MCH, MCHC, CH, CHCM, CHDW, RDW, HDW, PLT,
PCT, MPV, and PDW
Corrective Action
Multiple occurrences of this flag, especially for consecutive samples, can indicate
a system problem.
•
Check RBC/PLT reagents
•
Contact your Siemens Field Service Representative.

RBC Irregular Flow Rate (RBCIFR, RR)

Definition
Flags
Normal Sample
PLT Cytogram
PLTORN Flag
PLT Cytogram
1 Platelet Origin Noise area
2 RBC Ghosts area
6-41