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Across 3. sits retroperitoneum 4. uses iodine 10. accelerator-produced radionuclide; bounds to blood protein 11. half life of 73.1 hours 13. has set a limit of 10ug Al+3 15. choroid plexus is found here 17. requires boiling 19. NaTcO4 and reduced technetium 21. pertechnetate localizes in the thyroid by this method 22. 0.15 uCi of Mo99/ 1mCi Tc99m 25. isonitrile compound

Down 1. group physical data for penetrating and nonpenetrating radiation 2. final approval procedure required by the FDA 5. by mouth 6. method of analyzing, recording, and measuring radiation 7. used to image the lungs 8. lung agent used during ventilation 9. quantifies different radiochemical states 12. murine origin 14. MDP,HDP are used to image this 16. lidofenin, disofenin, disofenin are used in what 18. prepared from stannous reduced Tc99m and betiatide 19. occurs outside the body (e.g. RBC labeling) 20. occurs inside the body (e.g. RBC tagging) 23. choroid plexus produces 24. assess drug's safety before use