Ramer · Alavi Nuclear Medicine Technology

14 Non-Imaging Procedures and Radionuclide Therapy 13916) Why must the cpm measured in the standard during aSchilling test be multiplied by a standard dilution factor?a. to account for the standard containing only a portionof the radioactive dose administered to the patientb. because an undiluted standard would contain toomuch activity to be efficiently counted in a wellcounterc. to account for fecal excretiond. none of the abovee. both a and b17) Beta emitters are effective for therapy because:a. they have a short range in soft tissueb. they do not harm healthy tissuec. they can be used for imaging as well as for therapyd. they have short half lives18) What is the meaning of polycythemia?a. an excess of white blood cellsb. an excess of plateletsc. an excess of red blood cellsd. an excess of plasma19) Which of the following measure the amount of red cellsin circulating blood?a. red cell volumeb. hemoglobinc. hematocritd. a and ce. all of the above