Siemens ADVIA 2120, Operator'S Manual, Page: 163 / 477

Flags 6-45
Retic Fit Suspect (RTC-FS, FC)
Definition
The Retic Fit Suspect flag is triggered if:
•
There is more than a 15% difference between the mean and the mode of the
Gaussian fit of the RETIC Absorption Histogram.
•
The chi-square error for the Gaussian fit exceeds 80,000.
Results Flagged
%RETIC, #RETIC, CHg, CHr, CHCMg, CHCMr, CHDWg, CHDWr, MCVg,
MCVr, RDWg, RDWr
Corrective Action
The following list may not contain all conditions that could cause this flag, nor is
there any intention to associate the flag with specific diagnoses.
•
Transfusion
•
Sickle cell anemia
•
Excessive NRBCs
Retic Irregular Flow Rate (RTCIFR, CR)
Definition
The Retic Irregular Flow Rate flag is triggered if the cell counting rate is erratic
due to a hydraulic disturbance in the retic channel.
Retic flow rate is evaluated in terms of the cell counting rate:
Flow Uniformity =
Sum of the Squared Differences
9 x Mean Cell Counting Rate
The flag is triggered if this value is greater than 3.2.
The Retic Rate histogram displays the arrival rate of cells in the retic channel.
Normal Retic Rate Histogram RTCIFR Retic Rate Histogram
Results Flagged
%RETIC, #RETIC
Corrective Action
1. Check retic reagents.
2. Check laser sample delivery.
3. Check retic hydraulics.