biodex ATOMLAB 950 - Page 57

Definition> in the primary tool bar. After selecting a patient, you can then access any mode of operation with
the new patient selected.
2. For existing patients, click on the patient name to reveal the studies. Double-click on the desired
study to return to the Thyroid Uptake screen with the patient and study selected.
3. The Thyroid Uptake screen should now be displayed. At the top of the screen should be the
currently selected patient and I.D. number. Confirm that this is the correct patient and correct I.D.
number for the patient to be tested.
4. Position the capsule(s) in the thyroid phantom and set up the collimator for use. Set the distance on
your distance bar and move the collimator down to this distance. The capsule count distance and the
thyroid count distance must be the same for all counts.
5. If testing an existing patient, proceed to step 9. For a new patient, click on the <Capsule> icon (third
from left, above the time titled ROI Counts) to begin counting. The message "Counting Dose"
appears on the right of the screen. The current system status is displayed on the left side of the
screen in the "Current Status" box.
NOTE: Once counting begins, the counts are shown in the spectrum at the top of the screen. ROI counts, ROI
cpm and elapsed time are indicated in the upper right. When the system finishes counting, it will stop and do a
final download for the best spectrum. If you desire to do a spectrum analysis, click on the <Spectrum> icon in
the primary tool bar.
6. Remove the capsule from the neck phantom and position the probe to measure lab background.
Click on the <Lab Background> icon (fourth from left, above ROI counts) to begin the lab
background count. In auto count time, the system will calculate the count rate and adjust the
counting time automatically. For manual counting, the system counts for the time selected.
7. When the lab background count is complete, the system prompts the user to save the dose count
results. Click on <Yes> to save the results.
NOTE: If you are not satisfied with the results for dose or lab background, click <No>. You can then
reposition for the appropriate count and click the desired icon to recount for that function.
8. When you are finished counting the dose and lab background, save the results.
9. Give the dose to the patient.
NOTE: If you do not immediately give the dose to the patient, you can correct the administration time by
clicking on <Change Administration Time>.
10. Tell the patient when to return.
11. When the patient returns, go to the Patient Window and select the patient and study. The system
will display the thyroid counting page. If you are using decay correction <Count Thyroid> will be
highlighted.
12. Position the probe over the patient's neck.
13. Click on the <Thyroid Count> icon (fifth from left, above ROI counts) to begin the thyroid count.
14. Once the thyroid count is complete, position the probe over the patient's thigh. Click on <Patient
Background> (sixth from left, above ROI counts) to begin the patient background count.
15. When patient background counting is complete, the system displays a message that "A Thyroid
INTRODUCTION
4-9 THYROID UPTAKE