Beckman Coulter COULTER LH 750 System, Reference

Page: 105 / 120

PN 4277248DD
GLOSSARY-11
GLOSSARY
Pending List A feature of the Workstation that lets you view a list of samples the instrument
has not yet processed. You can view a list of all the unprocessed samples or a list
of unprocessed samples for a particular test mode. You can sort these lists by
any column you choose.
Also called: Worklist, Pending List, Work Order.
Pericardial Fluid Fluid taken from the chest cavity around the heart.
Peritoneal Fluid Fluid taken from the abdominal cavity.
r
Dialysate - The resulting drainage fluid after the abdomen has been
inflused with dialysis solution.
r
Lavage - The resulting drainage fluid after the abdomen has been infused
with lavage solution.
pg Picogram, a unit of gravimetric measure equal to one trillionth of a gram.
Photometric
Measurement A process where a beam of white light from an incandescent lamp goes through
an optical filter and is read by a photocell. This generates a current that can be
measured.
Pleural Fluid Fluid taken from the chest cavity around the lungs.
Plt Histogram The portion of the Plt distribution curve between 0 fL and 36 fL
PLT (Platelet) Platelet count results from the CBC analysis. The system derives this parameter
from the Plt histogram.
PLT = n x cells/µL
Positive Identifier An identifier that is linked irrevocably to the date and time of instrument
analysis on a sample and the sample results. A positive identifier must be
entered before a sample analysis can occur. You can use either sample ID or
Cass/Pos as positive identifiers of the sample and its results. You can also choose
to use both sample ID and Cass/Pos as positive identifiers.
Precision A measure of the ability of the instrument to reproduce similar results when a
sample is run repeatedly. Precision of the instrument is a CV (or an SD for
differential results), based on at least 31 replicate determinations of the same
sample. Precision shows the closeness of test results when repeated analyses of
the same material are performed.
Also called: reproducibility.
Precision Test The precision test is performed as part of the automatic startup cycles. If any
test value exceeds the reference value by 1% or more, the test value appears in
red on the Workstation screen and is flagged with an H (high) or L (low).
103