Ramer · Alavi Nuclear Medicine Technology

162 Radioactivity, Radiopharmacy, and Quality Assurance58) What is the difference between preparation of a 99m TcHMPAO kit for use in leukocyte labeling as comparedto brain imaging?a. methylene blue stabilizer is not addedb. the kit is boiled after addition of pertechnetatec. an anticoagulant must be addedd. labeling efficiency is much more critical59) Testing for pyrogens is achieved by:a. radiochromatographyb. limulus amebocyte lysate assayc. ITLCd. none of the above60) If the proper centrifuge speed is not used duringseparation of cell types for leukocyte labeling with 111 Inoxine, what may happen?a. platelets may be inadvertently labeledb. 111 In oxine will not tag WBCsc. red blood cells may become damagedd. white blood cells may become damaged61) In reconstituted radiopharmaceutical kits, in what formis 99m Tc present?a. free pertechnetateb. bound technetiumc. reduced, hydrolyzed technetiumd. all of the above62) For determination of plasma volume, 10 µCi of humanserum albumin in 2.5 ml is added to 500 ml of water.What is the concentration of the resulting solution?a. 0.019 µCi/mlb. 0.020 µCi/mlc. 50.00 µCi/mld. 50.20 µCi/ml