ITC Hemochron Response Whole Blood Coagulation System - Manual (Page 28)

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5.
When the correct ESV serial number is displayed, press YES.
6.
Upon completion of the test and removal of the ESV tube from the well, the result is stored in the
database. Compare the result with the number of seconds selected in the first step.
7.
Repeat, using the 300 second or 500 second button for the first well. Then, repeat the entire test
on the second well. Results are acceptable if within 10 seconds of the selected times.
Note: Contact ITC if the results are not within range. The ESV may be manually tagged if the
barcode label is not read.
QC Using Liquid Controls
The instrument can also be tested at any time using LQC products.
Note: HEMOCHRON LQC products are available from ITC. Refer to the LQC package insert for
procedural description.
To Run LQC:
1.
Press MENU to display the first page of the main menu.
2.
Press 2 to display the QC Selections menu.
Note: If the current operator is not allowed (see Supervisor Options) to run LQC, an
information message is displayed and the operator cannot proceed.
3.
Press 1 or 2, corresponding to whether a normal or abnormal control is being run. The QC menu
for the selected control level is displayed.
4.
Press 1. The current lower limit for the control range is displayed with the cursor positioned
where the first character of the new lower limit is to be entered.
5.
If needed, enter the new lower limit (up to 4 characters). If needed, press BACKSPACE to undo
an entry for retyping.
6.
Press YES. The prompt Lower Stored is briefly displayed with the new lower limit value.
7.
Press 2. Repeat Steps 5 and 6 for the upper limit.
8.
Press 3. Enter the lot number for the control.
9.
Press YES to accept the new entries.
10.
Press CANCEL to return to previous menus.
11.
Perform the test.
Mandatory QC Testing
A time interval can be specified from 1 to 1080 hours before either LQC and/or ESV tests must be run.
Specifying a time interval of zero disables this feature. If a time interval is specified for LQC and/or ESV
testing, the instrument will remind the operator when LQC or ESV is due.
Note: The required interval between QC tests is specified using the QC Lockout menu. Refer to
Setting Supervisor Options for details. If LQC and ESV testing intervals coincide, only performance
of LQC will be required. Performance of ESV will not be required until the next interval.
When the specified time interval has expired, the instrument will lock and indicate which controls must be
run.
Note: The instrument can be unlocked by an authorized operator for a specified number of
additional tests if the 911 Attempts option is enabled using the QC Lockout menu (page 16).
Additional Method to Verify Instrument Temperature
A Quality Control temperature evaluation of the HEMOCHRON Response instrument is performed
automatically each time a test is run (see the Self-Check section on page 27). However, for purposes of your
QC program, it may be preferred to additionally perform a temperature QC evaluation using the ITC
Temperature Verification Tube to verify that a temperature of 37 °C ±1.0 °C is maintained. The
Temperature Verification Tube can be obtained from ITC.
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