To Perform a Dicopac Schillings Test:
(See Figure 8-4.)
1.
Click
on
the
<Procedure>
icon
to
access
the
Procedure
Definition
window.
2. At the Procedure Definition window, enter the parameters for the Dicopac studies that you wish to
perform. You can modify an existing procedure or create a new procedure. This entails entering the
counting time, sample volume, detector and type of kit.
NOTE: Once you do enter and save, this procedure is now stored and you do not have to enter it again.
3. Enter the patient, if not entered in the patient window, or select the patient if already in the system,
and pick the proper Schillings Test to perform for this patient.
4. At the Schilling Dicopac screen, verify that the patient name and ID is correct.
5.
Click
on
<Preferences>
to
open
the
Dicopac
parameters
window.
6. Verify that the counting time and sample volumes are correct. The standard in the Dicopac Kit is 600
seconds counting time and a sample volume of 4ml.
7. Enter the total urine volume collected by the patient over the 24 hour collection period and click
<OK>.
8. Ensure the vials, samples and standards are ready and proceed with the test.
9. Take an empty vial and add water to it to the same volume that you are using for your urine aliquot.
Place this vial into the well counter.
10. Click <Background>. The system automatically counts background for both Co-57w and Co-58w.
11. Remove the tube used for background counting and place the Co-58 standard into the well counter.
12. Click on the < Co-58> standard button. The system will now count the Co-58 standard and record
the count in the Co-58w window. The system next automatically counts the Co-57w window, using
the Co-58 source to calculate spill-down.
NOTE: For spill-down, the system periodically pauses to record the current data, then continues counting from
0 counts (the time between data downloads varies depending on the count rate). New data is added to previous
data until the total counting time requested is completed. This prevents roll-over from occurring. The total
counts for spill-down are recorded as the final Co-57 spill-down result.
13. Remove the Co-58 standard from the well counter.
14. Place the Co-57 standard into the well counter.
15. Click <Co-57>to count the Co-57 standard and store the value. When done counting, remove the Co-
57 standard from the well counter.
16. Place the urine aliquot or sample into the well counter.
17. Click on <Sample> to count the urine sample for both the Co-58w and Co-57w windows.
18. When counting, is complete, the "Verified Test Complete” window is displayed. At this point, the
system displays the calculations for Co-57, Co-58 and the percentage excretion in the lower left corner
of the screen. If you wish to save, click <Yes>. The system will automatically save the data.
SCHILLING TESTS 8-6
CONTENTS
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