ionized calcium testing on the istat1 analyzer - Point of Care Testing

<strong>ionized</strong> <strong>calcium</strong> <strong>testing</strong> on the istat1 analyzer(LTR20176)Last Review Date: 3/24/2011 12:57:12 PM2. A properly inserted cartridge will click and a “Cartridge Locked” message will display onthe bottom of the display screen.3. The inserted cartridge activates the analyzer.4. The analyzer displays “IDENTIFYING CARTRIDGE” and “Cartridge Locked”messages. Do NOT attempt to remove a test cartridge while the “Cartridge Locked”message is displayed. This act can damage the analyzer.G. Enter additional information.1. After the cartridge is inserted, wait for the “Select Test to Report” screen to appear.a. Select 3 – iCa (<strong>ionized</strong> <strong>calcium</strong>)b. Press the right arrow key to advance the page.2. Always enter the sample type.a. Select 2 – VENb. Press the right arrow key to advance the page.3. Testing is completed in approximately 2 minutes.H. View results1. Results are displayed on the iSTAT screen once the cartridge has been unlocked andthe “Cartridge Locked” message disappears. There will be an audible beep. Pressingthe right arrow button after the beep will prompt device to display the results.2. Results will display for 5 minutes before timing out.3. Results can be recalled to the display screen by selecting 1 – Last Result on the TestMenu screen.I. Remove the test cartridge1. Remove the cartridge after the “Cartridge Locked” message disappears from thedisplay screen. Never remove the cartridge while the “Cartridge Locked” message isdisplayed. This act can damage the analyzer.2. Discard the used cartridge in an appropriate Biohazardous Waste Receptacle.3. Press enter (ENT) to display and select 1-Test Options to continue additional <strong>testing</strong>, orpower off the device if no further <strong>testing</strong> is necessary.VI.INTERPRETATION OF RESULTS:A. CalculationsThe iSTAT analyzer contains a microprocessor that performs all calculations required forreportable results.B. Displayed Result1. Accompanied by an audible beep by the analyzer.2. Numerical with units.3. ALWAYS REVIEW RESULTS FOR ACCEPTABILITYDisclaimer: Printed copies are not the official document. See on-line version.C:\DOCUME~1\EASYPD~1\LOCALS~1\Temp\BCL Technologies\easyPDF 5\@BCL@E80DC2FD\@BCL@E80DC2FD.docPage 7 of 10

<strong>ionized</strong> <strong>calcium</strong> <strong>testing</strong> on the istat1 analyzer(LTR20176)Last Review Date: 3/24/2011 12:57:12 PMTable 3: Reportable (Linear) RangeTEST UNITS REPORTABLE RANGEiCA mmol / L 0.25 – 2.50Results outside of the reportable (linear) range will display with a “” sign precedingthe value, or a “” sign only displayed.Report these results immediately to the patient’s physician.G. Uncharacteristic Results1. A result of “ * * * ” indicates an internal QC rejection and result is not reportable.Causes include defective sensor or interference in the sample.a. Repeat the test with a fresh cartridge.2. Critical / Alert ValuesTable 4: Critical / Alert ValuesTEST UNITS AdultLOWHIGHNeonatesLOW HIGHiCA mmol / L 1.51 1.51VII.a. Ionized <strong>calcium</strong>s do not require repeat <strong>testing</strong>.b. All critical / alert value results require provider notification.i. Documentation of critical notification must include the full name andcredentials, or dempo ID, of the person notified in Meditech.3. Results out of reportable (linear) range of the iSTAT devices.4. Incomplete test cycle due to problem with the sample, calibrant solution, sensors,mechanical or electrical functions of the analyzer.a. Follow the instructions displayed with the message that identifies the problem.b. Contact the Laboratory Point of Care Testing Office if necessary.H. Recalling stored results1. Press the MENU key until you reach the Administration Menu2. Select Data Review by pressing the “2” key.3. Select the desired data review option from the provided list by pressing thecorresponding # key.4. Enter the ID number for a specific data review or press Enter (ENT) key to toggle frommost recent to oldest data.LIMITATIONS OF METHOD:A. Proper sample collection technique must be followed to avoid hemolysis or tissue fluidcontamination.Disclaimer: Printed copies are not the official document. See on-line version.C:\DOCUME~1\EASYPD~1\LOCALS~1\Temp\BCL Technologies\easyPDF 5\@BCL@E80DC2FD\@BCL@E80DC2FD.docPage 9 of 10