Theragnostics - Preparation Requirements

Total expected time for the procedure, including preparation, administration, uptake period, and imaging. Depends on the type of tumour, radionuclide and tracer.
Example:
Approx. 4–6 hours (including tracer administration and post-therapy monitoring). However, depending on the type of tumour. This may vary from 4 hrs up to 48 hrs.

4-48hrs

Please confirm pregnancy status prior to procedure.

• Contraindicated in pregnant patients.

• A negative pregnancy test is required within 24 hours for women of childbearing potential.

• Discontinue breastfeeding for at least 24 hours post-procedure (duration may vary with isotope).

• Express and discard milk during this period.

• Depending on the treatment, breast feeding may be discontinued. 

• Review all current medications with physician.

• Somatostatin analogues, androgen-deprivation therapy, or chemotherapy may require temporary discontinuation prior to study—follow specialist advice.

• No known allergic reactions expected to radiopharmaceutical components, but premedication may be considered if history of hypersensitivity.

• Renal and liver function tests within 2 weeks prior to procedure.

• CBC if undergoing therapeutic study.

• Serum creatinine and eGFR must be within acceptable limits.

• No specific fasting required unless instructed otherwise.

• Encourage good hydration before and after tracer administration (e.g., drink 2–3 glasses of water).

• Frequent voiding post-injection to reduce radiation exposure to the bladder.