Determine what is the dose to the thyroid, Biology

Assignment Help:

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.


Related Discussions:- Determine what is the dose to the thyroid

What is plaque, What is plaque? Plaque is a film over the teeth and hav...

What is plaque? Plaque is a film over the teeth and having of saliva, mucus, bacteria and the substances they produce. It may also have mineral salts of calcium and magnesium.

Explain the terms - sulphur and boron, Sulphur and Boron Boron is extra...

Sulphur and Boron Boron is extracted with hot water. Sulphur is extracted with 500 ppm solution of P solution (prepared from potassium dihydrogen orthophosphate or monocalcium

What is pulmonary edema, Q. What is Pulmonary Edema? When the capillary...

Q. What is Pulmonary Edema? When the capillary pressure exceeds the plasma osmotic pressure, fluid first accumulates in the interstitial spaces. The components of the interstit

Explain the executive functions - psychological tests, Explain the Executiv...

Explain the Executive Functions - Psychological tests Executive functions are those involved in the planning, organisation, regulation and monitoring of goal directed behaviour

Controlling expression of a number of genes in e, he Lac Repressor protein,...

he Lac Repressor protein, which we will talk about a bit later in the course, is important for controlling expression of a number of genes in E. coli. There are about 10 copies of

Explain the magnesium deficiency and toxicity, Explain the Magnesium Defici...

Explain the Magnesium Deficiency and Toxicity? Deficiency of magnesium is rare for two reasons: frstly, the mineral is widely distributed in the foods, secondly, kidney is able

What do you mean by hydraulic modelling, Q. What do you mean by hydraulic m...

Q. What do you mean by hydraulic modelling? Modelling is neither new nor relevant to hydraulic engineering only. It is practiced in the field of hydraulic machinery for testing

Define effect on human chorionic gonadotropin in pregnancy, Define effect o...

Define effect on Human chorionic gonadotropin in Pregnancy? Human chorionic gonadotropin (HCG) begins to increase immediately on implantation of the ovum and reaches a peak at

Explain what is genetic factors, Explain what is Genetic Factors ? It h...

Explain what is Genetic Factors ? It has been suggested that certain genetic defect(s) could be partly responsible for increased risk of CAD in Asian Indians. No specific genet

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd