Running a Sample 4-5
4.4 Running a Blank Measurement
A blank measurement must be run at the beginning of the day before any samples can be run, or every
12 hours for 24-hour clinics. Blanks must also be run after a reagent pack change. The blank checks the
cleanliness of the VetScan HM5’s fluidic system, and establishes a baseline for sample measurements.
The results of a blank are used to determine if the background will affect the test results, and whether
the analyzer needs cleaning or maintenance.
1. From the Home screen, select Measure > Run.
2. If the
Blank results are expired s
creen appears, select
OK
to run a blank.
(If a blank has already been run and accepted for the day, this message does not appear.
To run a new blank, select Run > Blank.)
3. When the blank has run, if the blank is successful (meaning there are no values reported in red
with
+
or
*
signs, and no warning message displayed) the results will appear on the screen.
Note: Each blank measurement is valid for 12 hours, after which the ana-
lyzer displays Blank results are expired! Accept the running of the
blank then accept the blank to begin running samples again.
In addition, a new blank must be run each time the analyzer is powered
off and then powered on again.
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