What should be done in the following situations: A room containing a 57Co sheet source is...

1. What should be done in the following situations:
A room containing a ⁵⁷Co sheet source is posted with a sign reading

“Caution-Radioactive Materials”. The exposure rate measured next to the source is 5.2 mR/hr.

A technologist discovers that a patient in the room next to a radioiodine therapy will receive 2.5 mrem/hr. when lying in his bed which is against the shared wall.

A spill of 99mTc increases the exposure rate in a room from 1.7 mR/hr to 3.15 mR/hr. The room is posted with a sign reading “Caution-Radioactive

Materials”.

Expert Solution

a) The radiation inside the room is already known.

So, the necessary precautions must already be there for the persons ahndling the room. So, there is nothis specific to be done here, other than ensuring that the safety measures is followed.

b) The value of 2.5 mR/hr is a very high value of radiation.

So, the person sleeping in that room is at high risk, given that radiation poisoning due to iodine is very easy to occur.

Either the room must be sealed and not used again, or the wall has to be made of a thick radiation absorbing material.

c) The half life of 99-Tc is 2.75 days.

So, the radiation due to the spill will get reduced to 3.15/2 = 1.57 in 2.75 days.

The exposure rate in the room will come back to normal level in 3 days.

So, the room must be quarantined for 3 days, and the ususal safety procedure has to be taken while using the room after this.

1.7 mR/hr is also a very high value.

genius_generous answered 2 years ago

1. What should be done in the following situations: i. A room containing a 57Co sheet...

1. What should be done in the following situations: i. A room containing a 57Co sheet source is posted with a sign reading “Caution-Radioactive Materials”. The exposure rate measured next to the source is 5.2 mR/hr. ii. A technologist discovers that a patient in the room next to a radioiodine therapy will receive 2.5 mrem/hr. when lying in his bed which is against the shared wall. iii. A spill of 99mTc increases the exposure rate in a room from 1.7...

What is the source of bias in each of the following situations the sample suffers from...

What is the source of bias in each of the following situations the sample suffers from and why? a) A health survey was conducted among households in a community that were selected at random from the telephone directory. In this community, 4% of households have no telephone and another 35% have unlisted telephone numbers. b) Respondents to a lifestyle survey may not truthfully answer a question on the use of illegal drugs. c) A researcher is interested in studying the...

If cloning of humans could be done safely, should it be done? What are the ethical...

If cloning of humans could be done safely, should it be done? What are the ethical and legal implications of cloning humans? Would you consider cloning yourself? Why or why not?

What is income? in each of the following situations indicate whether taxable income should be recognized....

What is income? in each of the following situations indicate whether taxable income should be recognized. a) Q purchased an older home for 30,000. Shortly after its purchase, the area in which it was located was designated a historical neighborhood, causing its value to rise to 50,000 b) R, a long term employee of XYC, purchased one of the company's cars worth 7,000 for 3,000. c) I borrowed 10,000 secured by property that had an adjusted basis of 3,000 and...

1.What should the nurse consider in the following situations : Moving a client up in bed...

1.What should the nurse consider in the following situations : Moving a client up in bed Respositioning 2. What should the nurse assess in the clinebt proir to transferring the client out if bed. 3. How does the nurse use a transfer belt and transfer board for moving and mobilizing patients?

In a fixed source/detector spectro-fluorometer, what can be done to increase the sensitivity of the optical...

In a fixed source/detector spectro-fluorometer, what can be done to increase the sensitivity of the optical emission signal?

What analyses should be done to determine the training needed for an organization then what are...

What analyses should be done to determine the training needed for an organization then what are the next steps afterwards?

Calculate pH for the following situations: a) A solution containing 0.0357 M maleic acid and 0.051...

Calculate pH for the following situations: a) A solution containing 0.0357 M maleic acid and 0.051 M disodium maleate. The Ka values for maleic acid are 1.20 × 10-2 (Ka1) and 5.37 × 10-7 (Ka2). b) A solution containing 0.0295 M succinic acid and 0.016 M potassium hydrogen succinate. The Ka values for succinic acid are 6.21 × 10-5 (Ka1) and 2.31 × 10-6 (Ka2).

2. Describe what you think should be done with the NSAs PRISM program. Should it be...

2. Describe what you think should be done with the NSAs PRISM program. Should it be continued without change, given more public oversight, substantially reduced in functionality, or discontinued altogether? justify your decision. 4.What is your opinion of employee monitoring?what effect does employee monitoring have on employee morale? How could employee monitoring make the organization more secure?

In what section of the balance sheet should the following items appear, and what balance sheet terminology would you use?

In what section of the balance sheet should the following items appear, and what balance sheet terminology would you use? (a) Treasury stock (recorded at cost). (b) Checking account at bank. (c) Land (held as an investment). (d) Sinking fund. (e) Unamortized premium on bonds payable. (f) Copyrights. (g) Pension fund assets. (h) Premium on common stock. (i) Long-term investments (pledged against bank loans payable).

Question