Beckman Coulter COULTER LH 750 System, Reference

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PN 4277248DD
GLOSSARY-14
GLOSSARY
SD (Standard
Deviation) A measure of deviation from the mean.
Secondary Mode The open-vial method of running a sample. You immerse the aspirator tip in the
sample. The instrument automatically aspirates the sample. If the instrument
fails to aspirate automatically, you can press and release the activator to aspirate
the sample.
Also called: open-vial mode, secondary mode, manual sampling mode.
Select
When an item is selected, a visual cue is present. For example, appears in a
field.
Serous Fluid A general term that describes peritoneal, pleural, and pericardial fluids as a
group.
Sequence Number The Workstation considers this field an optional identifier you can use for a
sample.
The Workstation assigns a sequence number to a sample when a sample request
is added to the ToDo list. If AutoSequencing is ON for the Patient Level Seq #
field the Workstation automatically assigns the next available sequence number
to the sample request.
Shift Consecutive values that abruptly move from one side of the mean to the other,
then maintain a constant level. Contrast with trend.
A scheduled period of work.
SID (Sample ID) One of two possible positive identifiers for sample analysis. The other possible
positive identifier is Cass/Pos.
Standard Deviation
(SD) A measure of deviation from the mean.
Status Bar A horizontal bar that appears toward the bottom of the screen. It displays short
instructions that can help you work with the LH 700 Series Workstation. It also
displays information about various LH 700 Series options.
Stop Bit A computer code that indicates the end of a character.
Suspect Messages Suspect messages appear in a separate area of the screen display, printout, and
host transmission. Suspect messages, such as Imm NE 1, Platelet Clumps, etc,
are instrument-generated. Suspect messages appear for sample results based on
an abnormal cell distribution or population. The system generates these
messages according to an internal algorithm. Abnormalities should be
confirmed by microscopic review.
Sweep Flow A steady stream of diluent that flows behind the RBC aperture during sensing
periods to keep RBCs from swirling back into the sensing zone.
SD
x x
n 1
=
−
−
Σ ( )
2
SD
x x
n 1
=
−
−
Σ ( )
2