Radiation Dose Estimates for Oral Administration of Kr-81m

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	Estimated Radiation Dose (mGy/MBq)
ORGAN	mGy/MBq	rad/mCi
Adrenals	5.0E-06	1.9E-05
Brain	1.5E-08	5.4E-08
Breasts	1.1E-06	4.0E-06
Gallbladder Wall	5.4E-06	2.0E-05
LLI Wall	1.6E-06	5.8E-06
Small Intestine	3.7E-06	1.4E-05
Stomach	4.1E-04	1.5E-03
ULI Wall	4.7E-06	1.7E-05
Heart Wall	4.3E-06	1.6E-05
Kidneys	5.0E-06	1.9E-05
Liver	2.7E-06	9.9E-06
Lungs	1.9E-06	7.2E-06
Muscle	1.8E-06	6.7E-06
Ovaries	1.1E-06	4.0E-06
Pancreas	2.2E-05	8.2E-05
Red Marrow	1.5E-06	5.4E-06
Bone Surfaces	1.5E-06	5.4E-06
Skin	6.5E-07	2.4E-06
Spleen	1.4E-05	5.2E-05
Testes	7.6E-08	2.8E-07
Thymus	7.5E-07	2.8E-06
Thyroid	6.6E-08	2.4E-07
Urinary Bladder Wall	3.7E-07	1.4E-06
Uterus	9.3E-07	3.4E-06
Effective Dose Equivalent	2.8E-05 mSv/MBq	1.1E-04 rem/mCi

All activity administered assumed to decay in stomach (no patient or animal data used).

Estimate calculated using phantom of Cristy & Eckerman (Report ORNL/TM-8381/V1 & V7)