Answer
Yes. Some antibody-based tests may give falsely raised results, so tell the laboratory and clinical team about treatment.
Sources for this answer
- Fulvestrant Dr Reddy's 250 mg Solution For Injection in Pre-Filled Syringe — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.