TABLE 1

Radiation Dosimetry for Adults

	Administered activity		Largest radiation dose					Effective dose		Effective dose
Radiopharmaceutical	MBq	mCi	Organ	mGy/MBq	rad/mCi	mGy	rad	mSv/MBq	rem/mCi	mSv	rem
^99mTc-pertechnetate^*(no blocking agent)	75–150 intravenously	2–4	Upper large intestine	0.057	0.21	4.3–8.6	0.43–0.86	0.013	0.048	0.98–2.0	0.098–0.2
^99mTc-sestamibi (rest)*	185–925 intravenously	5–25	Gallbladder	0.039	0.14	7.2–36	0.72–3.6	0.009	0.033	1.6–8.3	0.16–0.83
^99mTc-tetrofosmin (rest)^†	185–925 intravenously	5–25	Gallbladder	0.027	0.10	5.0–25	0.5–2.5	0.0069	0.026	1.3–6.4	0.13–0.64
¹²³I-iodide (assuming 35% uptake)^‡	7.5–20 by mouth	0.2–0.6	Thyroid	4.5	17	34–90	3.4–9.0	0.22	0.81	1.6–4.4	0.16–0.44