ITC VerifyNow System Platelet Reactivity Test - Manual (Page 29)

Page 25 14439.C 03/2013
Quality Controls - 5
VerifyNow System User Manual | USA
control material does not produce a result within the expected range, perform an EQC test to ensure
that the instrument is working properly. If the EQC is OK, prepare a new WQC Level 1 sample and
repeat the WQC procedure with a new test device. If the EQC is not OK, follow the instructions in
Chapter 10, Troubleshooting. If the WQC result fails on the second attempt, contact Accumetrics
Technical Support.
17. Press the Next key to return to the main menu.
5.2.2 Level 2 WQC
WQC Level 2 is formulated at a clinically relevant level, and is representative of a sample with minimal
platelet inhibition. During Level 2 WQC, a pink pellet is added to the diluent to verify continued
performance, by checking that actual results are within a standard range. It takes approximately 3 to 5
minutes to complete using the following procedure:
Materials
You will need 1 test device, 1 WQC diluent tube and 1 WQC pellet
NOTE: Do not use test devices or WQC materials beyond the expiration date.
Procedure
1. Locate one test device, one WQC pellet vial and one WQC diluent tube.
2. Power on the instrument using the power switch on the back panel (“I” designates on). The instrument
will power on and perform a self-testing routine lasting approximately 30 seconds. After the self-testing
is complete, the Start screen will display. Press the Next key to advance to the main menu (Figure
5-18). The instrument should be allowed to warm-up for at least 15 minutes prior to use.
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QC
VerifyNow
System
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The System is
warming up.
Figure 5‑18 Main Menu
A flashing message will display while the instrument is warming up. During this time the icon keys
are inactive and you will be unable to start a test. Go to the next step after the warm-up message no
longer displays.
3. From the main menu, enter Operator ID and Password, if required. Use the keypad to enter
the Operator ID number at the prompt. Press the Tab key to advance to the Password prompt to
enter the password number.
4. Press the QC key. Wait for the image of the device to display (Figure 5-19).