Nuclear Medicine Board Review Latest Version Graded A+
Gas Ventilation Xu 133, 81 KeV, 5.3 half-life; reactor produced dose: 10-20 mCi imaging: posterior position negative pressure room required uses activated charcoal trap to accumulate the exhaled xenon gas until decayed to background single breath: during inhalation wash in / equilibrium: collected while the xenon distributes through aerated portions of the lung wash out: while radioactivity is cleared from lungs Sr 89 Chloride Strontium Chloride, Metatron 1.46 MeV max, .58 Mev mean half-life = 50.5 days 40-60 uci/kg IV for skeletal mets, depresses bone marrow shouldn't be used if leukocyte count below 2400/ul or platelet below 60,o00/ul excretion : urinary
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