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Radiation Exposure

Exposure to Radiation

Pathophysiology

Cumulative Dose

Clinical Assessment and Risk Stratification

Examination (Local)

Question: Radiation

Short- and Long-term Effects of Radiation Exposure

Examination (Systemic)

Radiation Effects

Question: Symptoms

Risk Stratification

Question: Cumulative Dose

General Measures: Preparation

General Measures: Acute Crisis Management

Long-term Consequences: Personal Safety

Long-term Consequences: Initial Assessment and Triage

Long-term Consequences: Decontamination

Specific Measures

Radiation Exposure

Radiation Exposure

Radiation Exposure
Radiation Exposure

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Question 1 of 5

1. Question
1 point(s)

In the acute stage, the biological effects of radiation exposure depend on which of the following factors?

Age of the patient
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Type of cell; rapidly dividing cells such as gut mucosa being more vulnerable
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Distance from the source of the radiation, with dose being proportional to the distance squared
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Gender of the patient
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Shielding with steel
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Question 2 of 5

2. Question
1 point(s)

With regard to local radiation burns which of the following statements are correct?

The patient can present with a burn without realising they have been exposed to a radiation source
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Signs are similar to those of a thermal burn
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Burns should be rinsed with water and closed immediately to prevent the risk of acting as a portal for infection
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Surgical excision of some long half-life materials might be required
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Vasodilator therapy is not indicated for the treatment of potential vascular insufficiency
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Question 3 of 5

3. Question
1 point(s)

With regard to systemic radiation exposure, which of the following statements are correct?

The clinical picture starts with a prodromal phase lasting about 12 hours
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The latent phase lasts for 14 days, during which the patient seems to recover
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The risk of infection is highest at 25-35 days due to marrow suppression
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Exposure to >20 Sv causes almost immediate symptoms, and death within a few days
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At doses of 1-8 Sv, gastrointestinal syndrome predominates; at 6-20 Sv symptoms are predominantly of a haematopoetic syndrome
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Question 4 of 5

4. Question
1 point(s)

Which initial investigations are useful in managing radiation exposure?

Full blood count (FBC) within the first 12 hours
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Liver function tests
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Chest x-ray
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Urea and electrolytes
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Nasal, oral cavity and wound swabs for microscopy culture and sensitivity (MC&S)
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Question 5 of 5

5. Question
1 point(s)

With regards to the initial management of radiation exposure, which of the following statements are correct?

Removing clothes reduces contamination by up to 90%
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Exposed individuals should be hosed down with cold water
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Safe transfer of patients between areas can be achieved by wrapping the patient in a sheet, which limits cross-contamination
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All staff dealing with contaminated patients should wear protective clothing and carry a personal radiation meter
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During decontamination, wound scrubbing may require abrasion of the skin barrier
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3 Comments

Dr Kelly Lewis July 26, 2022 at 1:10 pm

Would have been nice to cover some of the high prfile cases of targeted radiation poisoning in UK

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Dr Arash Kaghazian July 16, 2024 at 3:35 pm

Very useful

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Dr Mehar Un Nisa Azhar Sheikh November 19, 2024 at 11:58 pm

Great lesson

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