Section 144-220-G-B-28 - Duties of authorized user and authorized medical physicistA. A licensee shall assure that only authorized users for the type of radioactive material used: (1) Prescribe the radiopharmaceutical dosage and/or dose to be administered through the issuance of a written directive or reference to the diagnostic clinical procedures manual; and(2) Direct, as specified in G.27 and G.40, or in license conditions, the administration of radioactive material for medical use to patients or human research subjects;(3) Prepare and administer, or supervise the preparation and administration of radioactive material for medical use, in accordance with G.11.B. and G.11.C. and G.27;(4) Perform the final interpretation of the results of tests, studies, or treatmentsB. A licensee shall assure that only authorized medical physicists perform, as applicable: (1) Full calibration measurements as described in G.632, G.633, and G.635s;(2) Periodic spot checks as described in G.642, G643, and G.645; and G.28. B(3);(3) Radiation surveys as described in G.652.10-144 C.M.R. ch. 220, § G-B-28