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For each department a) explain the nature and assess the severity of the hazards to patients and staff (AC 5.2) b) explain how the procedures reduce the hazardous effect (AC 5.3) c) explain the circumstances where each method of imaging might be used in preference to ultrasound, which has relatively low probability of harming the patient. (AC5.1)

For each department a) explain the nature and assess the severity of the hazards to patients and staff (AC 5.2) b) explain how the procedures reduce the hazardous effect (AC 5.3) c) explain the circumstances where each method of imaging might be used in preference to ultrasound, which has relatively low probability of harming the patient. (AC5.1)

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Scenario 1: Nuclear Medicine Imaging Patients who have received radionuclide therapy shall be accommodated in the hospital facilities in a manner that minimizes the radiation exposure of workers, other patients and visitors. ● Patients who have had radioactive substances administered to them may be treated as outpatients when radiation exposures caused to family members and other persons by the residual activity in these patients remain insignificant. The following dose constraints shall be applied: Family members of the patient O Children (including unborn children) 1 mSv/treatment O Adults (under 60 years of age) 3 mSv/treatment O Adults (60 years of age and older) 15 mSv/treatment Other persons (members of the public) 0.3 mSv/year If it is possible that the dose constraints of family members or any other individuals might be exceeded, (e.g. because of a long journey, or if there are small children at home) the patient must remain in hospital until the residual activity in this patient has fallen sufficiently. Patients with incontinence should not be released to their own home or to nursing home immediately after treatment. After 1311 treatment the patient may be released from hospital after receiving the relevant radiation protection instructions when the residual 1311 activity in patient no longer exceeds 800 MBq. When using beta-emitting radionuclides, such as 32P, 89Sr and 90Y, no radiation protection measures are necessary after the residual activity in a patient no longer exceeds 200 MBq.
Transcribed Image Text:Scenario 1: Nuclear Medicine Imaging Patients who have received radionuclide therapy shall be accommodated in the hospital facilities in a manner that minimizes the radiation exposure of workers, other patients and visitors. ● Patients who have had radioactive substances administered to them may be treated as outpatients when radiation exposures caused to family members and other persons by the residual activity in these patients remain insignificant. The following dose constraints shall be applied: Family members of the patient O Children (including unborn children) 1 mSv/treatment O Adults (under 60 years of age) 3 mSv/treatment O Adults (60 years of age and older) 15 mSv/treatment Other persons (members of the public) 0.3 mSv/year If it is possible that the dose constraints of family members or any other individuals might be exceeded, (e.g. because of a long journey, or if there are small children at home) the patient must remain in hospital until the residual activity in this patient has fallen sufficiently. Patients with incontinence should not be released to their own home or to nursing home immediately after treatment. After 1311 treatment the patient may be released from hospital after receiving the relevant radiation protection instructions when the residual 1311 activity in patient no longer exceeds 800 MBq. When using beta-emitting radionuclides, such as 32P, 89Sr and 90Y, no radiation protection measures are necessary after the residual activity in a patient no longer exceeds 200 MBq.
Read the information describing some of the operating procedures used in three medical imaging departments. For each department a) explain the nature and assess the severity of the hazards to patients and staff (AC 5.2) b) explain how the procedures reduce the hazardous effect (AC 5.3) c) explain the circumstances where each method of imaging might be used in preference to ultrasound, which has relatively low probability of harming the patient. (AC5.1) Your answers should show your understanding of the physics principles underlying the hazards and the control measures taken.
Transcribed Image Text:Read the information describing some of the operating procedures used in three medical imaging departments. For each department a) explain the nature and assess the severity of the hazards to patients and staff (AC 5.2) b) explain how the procedures reduce the hazardous effect (AC 5.3) c) explain the circumstances where each method of imaging might be used in preference to ultrasound, which has relatively low probability of harming the patient. (AC5.1) Your answers should show your understanding of the physics principles underlying the hazards and the control measures taken.
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