NRRPT Emergency Response and Decontamination 3

Question 1

An emergency worker receives a whole-body dose of 250 mSv while performing life-saving actions. According to EPA guidance, this dose is:

Accepted Answer

Acceptable only for life-saving actions when lower doses are not feasible

Answer

EPA guidance allows doses up to 250 mSv for life-saving actions, recognizing that the benefit to the public may outweigh individual risk.

Question 2

In radiological triage, what does the term 'expectant' category mean?

Accepted Answer

Patients whose injuries are so severe that survival is unlikely even with treatment

Answer

The 'expectant' triage category designates patients unlikely to survive even with aggressive treatment, requiring comfort care only.

Question 3

Which radioactive isotope released in a nuclear reactor accident is of greatest concern for thyroid dose to the general public in the first days post-accident?

Accepted Answer

I-131

Answer

I-131 concentrates in the thyroid gland and has a relatively short half-life (8 days) making it the primary early thyroid dose concern after reactor accidents.

Question 4

What is the principal radiation hazard associated with a transportation accident involving a Type B radioactive material package?

Accepted Answer

External radiation from intact or damaged shielding

Answer

Type B packages carry high-activity sources; the primary hazard is external gamma/beta radiation, especially if shielding is breached.

Question 5

During decontamination of a wound with embedded radioactive foreign material, what is the recommended initial action?

Accepted Answer

Irrigate the wound copiously with sterile saline

Answer

Copious irrigation with sterile saline removes loose contamination and reduces internal uptake while awaiting medical and HP guidance.

(NRRPT) National Registry of Radiation Protection Technicians Practice Test

(NRRPT) National Registry of Radiation Protection Technicians Practice Test

NRRPT Emergency Response and Decontamination 3