Retic Absorption Distribution Abnormal (Rtcada, Ca) - Siemens ADVIA 2120 Operator's Manual

2. Flush the flowcell.

Retic Absorption Distribution Abnormal (RTCADA, CA)

Definition
The RTCADA flag is triggered if the absorption distribution for the gated cell
population is abnormal.
The absorption distribution of the histogram is sufficiently abnormal that the
reticulocyte population may not be gated correctly.
The flag is triggered if:
The mode of the calculated
Gaussian fit for the absorption
histogram is below channel 6.
The mode of the calculated
Gaussian fit for the absorption
histogram is above channel 30.
The SD of the absorption histogram
above 80% of the original
histogram height is greater than 1.4.
The measured mean absorption
minus the theoretical absorption is
greater than 30%.
Results Flagged
%RETIC, #RETIC, CHg, CHr, CHCMg, CHCMr, CHDWr, CHDWg, MCVg,
MCVr, RDWg, RDWr
Corrective Action
Multiple occurrences of this flag, especially for consecutive samples, can indicate
a system problem. However, isolated instances of this flag are usually sample
related.
The following list of sample-related causes may not contain all conditions that
could cause this flag. There is no intention to associate the flag with specific
diagnoses.
System Related
Flags
Retic Abs
Retic Abs
Retic Abs
Retic Abs F
Sample Related
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