A patient with hyperthyroidism has been treated with radioactive iodine therapy. What discharge advice should the nurse give to the family?

1. A

   Lifelong use of separate utensils

2. B

   Isolate for 2–3 days

3. C

   Isolate for 24 hours only

4. D

   No precautions are needed at home

Appeared in: NORCET 10 Mains

Explanation

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• Following radioactive iodine (131I) therapy, the patient's body fluids (saliva, urine, sweat) become radioactive for a period.
• To protect family members from radiation exposure, the patient must follow specific safety measures for several days.
• These precautions include avoiding close contact, sleeping in a separate bed, and not sharing personal items like utensils.
• A general isolation period of 2–3 days is a standard recommendation, as this is when the patient's radioactivity is at its highest.
• The exact duration of precautions is dependent on the dose of radioactive iodine administered.

Why Other Options Were Wrong

• Option A: This is excessive and unnecessary. Radioactive iodine (I-131) has a half-life of approximately 8 days, meaning the radioactivity decays over a relatively short period. Precautions are temporary, not lifelong.
• Option C: This duration is insufficient. Significant levels of radiation are still present in the patient's body after 24 hours, posing a risk to family members, especially vulnerable individuals like children and pregnant women.
• Option D: This is dangerous and incorrect. The patient is a source of radiation after therapy. Failing to take precautions exposes household members to unnecessary radiation, which can have health consequences.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Safety precautions and patient education following radioactive iodine (RAI) therapy to guide bedside assessment, documentation, and the next nursing action.
• Nurses play a crucial role in providing clear, specific, and written instructions to the patient and family to ensure adherence to safety protocols and reduce anxiety.
• The core principle guiding these recommendations is ALARA (As Low As Reasonably Achievable), which aims to minimize radiation exposure to the patient and others.
• Patient education must stress that these measures are temporary and essential for the safety of loved ones.

How to Approach the Question

• First, identify the core of the question: it's about safety precautions after a procedure involving radioactive material (radioactive iodine).
• Recall the basic principles of radiation safety: limit time of exposure and increase distance from the source. At home, this translates to temporary isolation and specific hygiene practices.
• Consider the nature of the radioactive substance. Iodine-131 has a half-life of about 8 days, which means the risk is temporary and diminishes over weeks, not lifelong.
• Evaluate the options based on this understanding. Eliminate the extremes: 'lifelong' is too long, and 'no precautions' is unsafe.
• Compare the remaining timeframes: '24 hours' versus '2–3 days'. Given that radioactivity persists for several days, 24 hours is too short to be safe. A period of 2–3 days represents a more standard and cautious initial timeframe for the most significant restrictions.
• Select the option that provides the most reasonable and safe advice for the general population.

Concept Tested & Keywords

• Concept Tested: Safety precautions and patient education following radioactive iodine (RAI) therapy.
• Stem keywords: hyperthyroidism, radioactive iodine therapy, discharge advice, family
• Lead-in keywords: What discharge advice

Question ID

QglKWpx3ih1-ya9TSt2rwG

Copy ID

Reference Book

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 4 p. 21-23

E6 Medicine Harrison 22e Part 2 p. 940-942