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Normal ^99mTc-DTPA Shuntogram

Agent: ^99mTc-Diethylenetriamine Pentaacetic (DTPA)
Adult Doses: 1 to 3 mCi into shunt reservior
Notes:

• The shunt reservoir is injected for this study, under strict aseptic conditions
• If the shunt is obstructed, radiopharmeceutical may reflux back into the ventricle
• Clearance T_1/2 is normally less than 10 minutes
• In the abdoment, the radiopharmeceutical should spread around around the peritoneum; beware if it stays loculated, as this can be abnormal