Chapter 20: Diagnostic investigations
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20.2 Unsealed radioactive sources for diagnostic investigations
Essential equipment
- Selection of needles (safety needles may not be appropriate therefore use needles as per local guidelines and specific procedures) and syringes (sizes dependent on volume required)
- Various gauge sizes of cannula
- Alcohol wipes
- Syringe shield
- Lead shield
- Tape and gauze
- Documentation regarding the isotope to be administered
- Radioactive isotope
- Disposable apron and non‐sterile gloves
- Thermoluminescent dose (TLD) finger meter
- Film badge
- Sharps bin (radioactive specific)
Pre‐procedure
ActionRationale
- 1.Explain and discuss the procedure with the patient, and, if relevant, with the relative/significant other accompanying the patient.
- 2.Before administering, look at the patient's prescription chart or protocol and confirm patient's identity.
- 3.Apply the relevant TLD meter and film badge.To measure radiation doses received by member of staff (Ionizing Radiation Regulations 1999, C).
- 4.Wash hands with liquid soap and warm water.
- 5.Apply disposable gloves and plastic apron.
Procedure
- 6.Cannulate patient as per Procedure guideline 17.4: Peripheral cannula insertion.To ensure venous access is obtained. E
- 7.Place the empty syringe in a lead syringe shield and attach needle. Place behind the lead body shield.
- 8.Stand behind lead body shield and draw up the prescribed dose of the radiopharmaceutical.
- 9.Administer the radionuclide intravenously via cannula with cap. There is no evidence to support the use of central venous access devices (CVADs). Please refer to local guidelines.To administer the radionuclide. E
- 10.Remove cannula, apply pressure and cover the exit site with gauze and secure with tape.Prevent any blood loss from skin exit site and possible contamination. E
- 11.Dispose of all used syringes, needles, and cannula in a designated radioactive sharps disposal bin which is stored within a lead shield.To contain radioactivity and allow safe disposal (Ionizing Radiation Regulations 1999, C).
- 12.Remove disposable gloves and wash hands at end of procedure.
Post‐procedure
- 13.Place a yellow identity bracelet on the wrists of all inpatients and complete information card with the details of when precautions can be discontinued. Give the completed information card to the patient or the nurse accompanying the patient.The yellow wristband will provide visual warning to inform all healthcare workers of the patient's recent diagnostic investigation. The information card will inform ward staff of restrictions related to managing a patient, as well as when measures that have to be adopted in the event of the patient vomiting or being incontinent can be discontinued (DH [32], C).The card also states where to obtain help and advice related to the patient's diagnostic investigation. E
- 14.Sign and complete administration documentation.
- 15.Monitor hands at end of procedure and before leaving the room by using the hand and foot monitor.
- 16.Monitor the room for radioactive contamination at the end of each day or if contamination may have occurred.