ITC VerifyNow System Platelet Reactivity Test - Manual (Page 38)

Patient Testing - 6
Page 34 14439.C 03/2013 VerifyNow System User Manual | USA
6.3 Sample Handling
Fresh whole blood samples in the appropriate partial-fill collection tubes are required for use with
the VerifyNow instrument. Keep samples at room temperature. Do not centrifuge, separate, freeze or
refrigerate sample. Table 6-1 provides the amount of time blood must incubate at room temperature
after collection and before test. Blood samples older than indicated must be discarded and a new
sample drawn.
Table 6‑1 Test Times
Test Wait Time Test Window
Aspirin 30 min 30 min to 4 hrs
PRUTest 10 min 10 min to 4 hrs
IIb/IIIa None Within 15 minutes
Samples should be handled according to your institution’s policies and procedures pertaining to
biohazardous materials.
6.4 Performing a Test
Materials
You will need the 1 Test device and 1 Sample tube:
NOTE: Test device should remain sealed in the foil pouch until ready for use to prevent damage by humidity.
NOTE: Do not use test devices or WQC materials beyond the expiration date.
Procedure
1. Locate one test device and the sample tube. If test device is refrigerated, allow it to reach room
temperature (18-25ºC or 64 -77ºF) prior to use. Do not remove the test device from the foil pouch
during this step.
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 6-2). The instrument should be allowed to warm-up for at least 15 minutes prior to use.
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The System is
warming up.
Figure 6‑2 Main Menu
A flashing message will display while the instrument is initially warming up. During this time the icon
keys are inactive and you will be unable to start a test. You will not be able to go to the next step
until after the warm up message no longer displays.