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Ramer · Alavi Nuclear Medicine Technology

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2 Radioactivity, Radiopharmacy, and Quality Assurance 1344) A dose of 99m Tc DMSA is prepared and calibrated tocontain 5.0 mCi at 8:00 a.m. The patient arrives late at10:00 a.m. Without using any tables of decay factors,determine what activity will remain in the dose atthat time.a. 3.40 mCib. 3.54 mCic. 3.62 mCid. 3.97 mCi45) A MAA kit contains 950,000 particles per ml. Theactivity in the kit is 50 mCi of 99m Tc in 5 ml. If a 4 mCidose is drawn up, how many particles will be in the dose?a. 76,000b. 380,000c. 410,000d. 450,00046) What will happen to the dose in question 47 if it sits forone hour?a. the number of particles per mCi will increaseb. the number of particles per mCi will decreasec. the number of particles per mCi will remainunchanged47) A volume of 5 ml containing 40 mCi of 99m Tc is addedto an MAA kit with an average of 3,000,000 particles.What volume of the reconstituted kit should be withdrawnto prepare a dose for a patient with severepulmonary hypertension?a. 0.25 mlb. 0.40 mlc. 0.45 mld. 0.50 ml

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