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warnings
WARNINGS Reports indicate impairment of brain images using sodium pertechnetate Tc 99m, which have been preceded by a bone image. The impairment may result in false positives or false negatives. It is recommended, where feasible, that brain imaging precede bone imaging procedures. Preliminary reports indicate impairment of blood pool images in patients receiving sodium heparin for anticoagulant therapy. This is characterized by a reduction in the amount of injected radioactivity remaining in the blood pool. TechneScan PYP should be injected by direct venipuncture. Heparinized catheter systems should be avoided.
ADVERSE REACTIONS Several adverse reactions due to the use of Technetium Tc 99m Pyrophosphate Injection have been reported. These were usually flushing, hypotension, fever, chills, nausea, vomiting and dizziness, as well as hypersensitivity reactions such as itching and various skin rashes.