ITC VerifyNow System Platelet Reactivity Test - Manual (Page 73)

Page 69 14439.C 03/2013
Troubleshooting - 10
VerifyNow System User Manual | USA
Issue Description Resolution
Message – Non-matching
baseline values (IIb/IIIa Test
only)
The two baseline entries do
not match.
A message displays while entering the baseline PAU result if the two
entries do not match.
1) Use the Tab key to move to the field that was entered incorrectly, and
re-enter the correct baseline.
2) Press the Next key to calculate percent inhibition.
Message – Low baseline
value (IIb/IIIa Test only)
The baseline result entered
is a lower PAU value than the
post-drug result.
A flashing and “</=” symbol will display when a suspicious baseline
has been entered.
1) Verify that the baseline result entered was correct.
2) If correct, press the Next key to calculate % inhibition as above. If
incorrect, re-enter the correct baseline as above and press the Next key
to calculate % inhibition.
Message – Reference range
baseline values (IIb/IIIa Test
only)
A baseline result is entered
that is not within the expected
range.
A reference range has been established for baseline patient samples
(before GP IIb/IIIa inhibitor administration) using the VerifyNow System.
Refer to VerifyNow IIb/IIIa package insert. This message appears if the
entered baseline is outside the reference range.
1) Verify that the baseline result entered was correct.
2) If correct, press the Next key to calculate % inhibition as above. If
incorrect, re-enter the correct baseline as above and press the Next key
to calculate % inhibition.
10.2 Attention, Error and Alarm Messages
Table 10-3 lists alerts (attention) and errors messages and provides a brief description of the issue and
instructions for resolving it.
Table 10‑3 Troubleshooting Attention and Error Messages
No. Issue Description Resolution
1
Attention - Bubbles in
sample
One or more of the test
detectors received too
high a light signal.
This event can be caused by an air bubble in the sample, a very low hematocrit sample, or
incomplete reconstitution of the reagent.
1) Keep the test device for troubleshooting, and verify there were no bubbles in the
detection wells. Also verify that the correct sample tube has been used. If there are
bubbles present, use a cleaning device (See Section 1.1). If there are no bubbles present,
the blood sample may have a low hematocrit. See test package insert for details.
2) Perform an EQC test (see Section 5.1). If the EQC is OK, run WQC Level 1 (see Section
5.2.1).
3) If the EQC is not OK or the problem persists, call Technical Support and have the test
device handy.
NOTE: Make sure to gently invert the sample as specified in Sections 5 and 6 to avoid
bubbles.
3
Attention - Test device
lot expired
An expired test device
has been inserted into the
instrument.
1) Check the expiration date on the packaging of the test device as well as the current date
and time on the instrument.
2) If the test device has expired, remove it and discard.
3) If the instrument’s date and time is incorrect, change the setting (see
Section 8.3).