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technetium Tc 99m red blood cells
- Development stage
- Approved
- Lead developer
- Curium
- Modality
- Antibody-Radionuclide Conjugates → Antibody Conjugates → Antibody-Based Therapeutics, Gamma Emitters → Radiopharmaceuticals, Small Molecules
- Administration
- Intravenous
01
Overview
Ultratag (Ultratag RBC) is a diagnostic radiopharmaceutical kit used for the in vitro preparation of technetium Tc 99m-labeled red blood cells. Developed by Mallinckrodt (now Curium), the kit contains stannous chloride dihydrate, sodium citrate dihydrate, and dextrose. The stannous ion acts as a reducing agent, allowing the radioactive isotope technetium-99m to bind to hemoglobin within the patient's red blood cells. Once re-injected, these labeled cells serve as a blood pool imaging agent, facilitating diagnostic procedures such as cardiac gated equilibrium imaging (MUGA scans), first-pass radionuclide angiography, and the localization of gastrointestinal bleeding sites.
- Brand names
- UltratagUltratag RBC
- Other names
- Tc-99m RBCTc99m RBCTc 99m RBCTechnetium Tc 99m-labeled Red Blood Cells
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