Emergency Response & Critical Care Flashcards
7 cards from real Radiation Health and Safety Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Emergency Response & Critical Care flashcards as text
A patient arrives with severe bleeding and external radioactive contamination. What is the correct priority?
Answer: Stabilize life-threatening injuries first, then decontaminate
Life-threatening conditions take precedence because contamination rarely poses an immediate danger to the patient or staff.
Which finding is part of the prodromal stage of acute radiation syndrome?
Answer: Nausea, vomiting, and anorexia
The prodromal stage presents with nausea, vomiting, anorexia, and fatigue within hours of exposure.
Which early laboratory trend best provides a rapid estimate of radiation dose?
Answer: Serial absolute lymphocyte counts
Lymphocytes are highly radiosensitive, and the rate of their decline over 24-48 hours correlates with dose.
Potassium iodide (KI) is used in a radiological emergency to protect which organ?
Answer: Thyroid gland
KI saturates the thyroid with stable iodine and blocks uptake of radioactive iodine.
Prussian blue is the preferred decorporation agent for internal contamination with which isotope?
Answer: Cesium-137
Prussian blue binds cesium and thallium in the gut, speeding fecal elimination.
Ca-DTPA or Zn-DTPA is indicated for internal contamination with which group of radionuclides?
Answer: Plutonium, americium, and curium
DTPA chelates transuranic elements and enhances their urinary excretion.
What is the most effective single step to reduce external contamination on a patient?
Answer: Removing outer clothing
Removing clothing and shoes typically eliminates up to about 90% of external contamination.
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