Hematocrit - Abbott i-STAT Alinity Operation Manual

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Hematocrit

On this tab, select settings for testing Hematocrit.
Hematocrit Setting (Calibration by
Laboratory Hematology Analyzer)
Apply CPB Protein Algorithm to
Hematocrit
i-STAT Alinity — System Operations Manual
Specify the anticoagulant used to calculate hematocrit result. For
best agreement of i‑STAT Alinity and hematology analyzer
hematocrit results, the i‑STAT Alinity customization setting is
selected according to the calibration of the comparative
hematology analyzer (MH‑K
clinical hematology analyzers are calibrated by the
microhematocrit method using K
Alinity System default customization is K
Select either:
K2EDTA
K3EDTA
The default is K3EDTA.
The Apply CPB option is intended for use when samples are
collected from patients on cardiopulmonary bypass. The CPB
function adjusts hematocrit and hemoglobin results for the
dilutional effect of pump fluid during cardiopulmonary bypass
surgery. However, the facility may validate its use for other
patient populations known to have protein levels significantly
lower than the normal adult population.
Note: If an instrument customized as "CPB, always
apply" is used for patients who are not on the pump, it
is possible that the hematocrit results will be reported
falsely high. If an instrument customized as "CPB, never
apply" is used for patients who are on the pump or have
decreased levels of protein, the hematocrit results may
be reported falsely low.
An instrument that is customized to prompt for CPB requires the
operator to answer Yes or No. Yes indicates that the CPB
correction should be applied. No indicates that the CPB
correction should not be applied. Select one of the following:
CPB, Prompt
Prompts the operator to apply CPB correction when the cartridge
has a hematocrit sensor.
CPB, always apply
Apply CPB correction every time a cartridge with a hematocrit
sensor is used.
CPB, never apply
Do not apply CPB correction when running a cartridge with a
hematocrit sensor.
Art: 746300-01 Rev. N
EDTA or MH‑K EDTA). Since most
2 3
EDTA anticoagulant, the i‑STAT
3
EDTA.
3
Rev. Date: 02-Nov-2022