What is the full form of the radiation safety precaution 'ALARA'?

Appeared in: DSSSB October 2024

Explanation

ALARA is a widely accepted acronym in radiation protection and occupational health.
It stands for 'As Low As Reasonably Achievable', which forms the cornerstone of radiation safety protocols.
The principle mandates that every reasonable effort must be made to maintain exposures to ionizing radiation as far below the dose limits as practical.
This involves balancing the need for radiation (e.g., for diagnosis or treatment) with the goal of minimizing potential harm.

Option B: This is incorrect. The principle of 'Time' in radiation safety dictates minimizing the duration of exposure, not prolonging it.
Option C: This is incorrect. The goal of ALARA is to minimize radiation dose, not acquire a 'large' dose. This contradicts the fundamental safety principle.
Option D: This is incorrect. Similar to the other distractors, this suggests maximizing the dose ('As Large As'), which is the opposite of the intended safety measure.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain ALARA principle in radiation safety as background academic context rather than a clinical decision trigger.
Nurses must apply ALARA principles daily, especially in oncology, radiology, and cardiac catheterization labs, to protect themselves and their patients.
Practical application includes wearing a dosimeter badge to monitor personal exposure, clustering care for patients with brachytherapy implants, and ensuring appropriate shielding is used.
Patient education is a key nursing role. Nurses must explain safety precautions to patients and their families, such as limiting visitor time and maintaining a safe distance.

How to Approach the Question

This is a factual recall question that tests your knowledge of a common acronym.
Identify the keyword in the question, which is 'ALARA'.
Recall the full form of this acronym from your study of radiation safety principles.
Evaluate the given options. The correct option will match the standard definition.
Eliminate options that contradict the fundamental goal of radiation safety, which is to minimize exposure. Options suggesting 'As Long' or 'As Large' are immediately suspect.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 2 Part 3 p. 75-77

E6 Textbook of Biochemistry for medical StudentsDM Vasudevan Part 2 — Subpart B (pp 240-463 of 478) p. 181-183

Practise the full DSSSB October 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.