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Ramer · Alavi Nuclear Medicine Technology

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9 Respiratory System Scintigraphy 9541) An advantage of 127 Xe over 133 Xe is that:a. it has a shorter half lifeb. it is inexpensivec. it can be used before a 99m Tc MAA perfusion studyd. it requires no special trapping because of the shorthalf life42) 81m Kr can be used to perform ventilation imaging:a. beforeb. duringc. afterd. all of the above43) 133 Xe can be used to perform ventilation scans witha portable camera in the intensive care unit.a. trueb. false

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