Flags, - Beckman Coulter LH 780 System Instructions For Use Manual

REVIEWING DATA
FLAGS
IMPORTANT
Coulter Inc. suggests using all available flagging options to optimize the sensitivity of instrument results
based on your patient population. All flagging options include reference ranges (H/L), action and critical
limits, definitive flags, suspect flags, parameter codes, delta checks, decision rules and system alarms.
Beckman Coulter Inc. recommends avoiding the use of single messages or outputs to summarize specimen
results or patient conditions. There may be situations where the presence of a rare events may fail to trigger
a suspect message.
Look for data patterns when examining codes, flags and messages. For example, determine if
some, all or related sets of results (for example, WBC and differential results) exhibit flags,
codes and messages. For some parameters, flagging occurs as a result of the flagging or
editing of other parameters. In all cases, follow you laboratory's policy for reviewing the
sample.
IMPORTANT
the results are manually edited, or when new results are received for a pending sample. Flagging is not
reevaluated upon a change of flagging limits for results already in the database.
Flag Definition
Indicates reference interval low or high.
Indicates an action, critical or other flag.
* The MCV is < 50 fL. Some red cells may be smaller than the instrument's counting
threshold.
+ Result exceeds the reportable range.
IMPORTANT
Manual mode, run a blank cycle before analyzing the next test sample to prevent carryover to the next
sample. When cycling in Automatic mode, rerun the sample immediately following the one with the +.
Sample dilutions may also result in wrong differential results. The instrument will automatically set to CBC
mode when predilute is chosen.
aL Action low limit was exceeded.
aH Action high limit was exceeded.
cL Critical low limit was exceeded.
cH Critical high limit was exceeded.
D Result triggered a Delta Check rule as defined by your laboratory.
e Result has been calculated from a manually edited parameter. This flag overwrites +,
*, and R flags.
E Manual edit or a primary parameter 'E' overwrites +, * and R flags.
5-10
Beckman Coulter Inc. does not claim to identify every abnormality in all samples. Beckman
Flagging is evaluated when the sample is analyzed. Flagging is reevaluated for a sample when
Incorrect results can occur. If the WBC, RBC, HGB, or PLT have + (flag), when cycling in
PN 773022BC