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1. Compute the mean energy per nuclear disintegration, A, for 99mTC if 2.0 x 109 Bq of this isotope is injected into a patient. Assume that one-half of the administered dose is taken up by the thyroid and that the removal kinetics follow first-order exponential form with a biological half-life of 4 h. What is the dose to the thyroid? Assume for purposes of this problem that the specific absorbed fraction is 0.5 and the thyroid weighs 80 g. Express the dose in gray.
Explain about the Oral cavity and alimental-y tract? Various functional changes and decline in secretary function occur in the digestive tract with aging. These include: Or
What are the principal sources of excessive nitrate and phosphate in rivers and lakes?
Is heart patient can do exercise Advise the patient to consult the doctor before starting any exercise. Doctor will advise the patient to choose exercises as per his condition;
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The cells lining the inside of the cheek are frequently removed for making observations of basic cell structure. The cells are from stratified squamous epithelium. Explain a reason
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