Capintec CRC-712MH, Руководство пользователя

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CAPINTEC, INC. CRC
®
-712MH
5. Record the activity measurement on the appropriate form or press the PRINT button
on the front panel to obtain a printout of the measurement (printer option required).
OTHER ISOTOPE MEASUREMENTS
The following procedure should be used for the other radioisotopes that do not have a preset
push-button. This procedure may also be used to verify the accuracy of the preset
radioisotopes.
1. Verify that the Zero and Background adjustments of the calibrator are within the
specified limits. (Reference CHAPTER 5: QUALITY ASSURANCE AND
ACCEPTANCE TESTING; SECTION: ACCEPTANCE TESTING.)
2. Locate the calibration number for the radioisotope to be measured, from the
Calibration Card that is supplied with the unit or in Appendix II of this manual and
make note of it.
3. Press the OTHER push-button.
4. Set the Calibration Control dial to the calibration number noted in Step 2. Select the
appropriate activity range.
Note: If the activity range is not known, select the AUTO-RANGE push-button for the
fastest measurement
If numerous measurements are being made in the same activity range, select
the specified range for the faster measurements.
5. Insert the sample to be measured into the Ionization Chamber well by means of the
plastic Sample Holder (dipper).
6. Observe that the display stabilizes and that the correct units are indicated.
7. Record the activity measurement on the appropriate form or press the PRINT button
on the front panel to obtain a printout of the measurement (printer option required).
DOSE ASSAY PROCEDURE
Prior to administering a radiopharmaceutical dose to a patient, the following procedure
should be performed.
1. Verify that the stock number and/or type of radiopharmaceutical agrees with what has
been prescribed.
2. Determine the activity of the entire vial using the procedure in the PRESET ISOTOPE
MEASUREMENT or OTHER ISOTOPE MEASUREMENTS section. Calculate the
activity per unit volume. (It is assumed that the volume in the vial is known.)
3. Calculate the volume required for the prescribed radiopharmaceutical dose. If the
dose is being prepared a significant time in advance of administration, the volume
must be adjusted to compensate for half-life decay.
6 - 2 MEASUREMENT PROCEDURES January 08