Retic Absorption Flatness (Rtc-Fl, Rf) - Siemens ADVIA 2120 Operator's Manual

1. Check retic reagents.
2. Check RBC/Baso/Retic hydraulics.
3. Check retic hydraulics.
4. Check sheath delivery.
5. Check the pressure and vacuum readings.

Retic Absorption Flatness (RTC-FL, RF)

Definition
The Retic Absorption Flatness flag is triggered when the CV (coefficient of
variation) for the RETIC ABS Flatness histogram is greater than 3.6.
Results Flagged
%RETIC, #RETIC, CHg, CHr, CHCMg, CHCMr, CHDWr, CHDWg, MCVg,
MCVr, RDWg, RDWr
Corrective Action
Laser oscillation (mode hopping)
Laser oscillation (also called mode hopping) is defined as a change in the laser
output frequency during the analysis. Typically, this condition triggers three
sample/system flags.
•
RETIC Fit Suspect flag (RTC-FS) is triggered due to the bimodal absorption
populations that appear on the RETIC Scatter Absorption cytogram (
the RETIC Absorption histogram (
•
RETIC Absorption Distribution Abnormal flag (RTCADA) is due to the
bimodal absorption populations that appear on the RETIC Absorption
histogram (
•
RETIC Absorption Flatness flag (RTC-FL) is triggered due to the large
variation in absorption signals that appears on the RETIC ABS Flatness
histogram (
In such cases, the operator must rerun the sample.
6-44
).
2
).
3
•
Aged blood
•
Transfusion
•
Sickle cell anemia
•
High numbers of
NRBCs
).
2
) and
1
Flags