ARRT Sonography Practice Questions - ARRT Sonography (Primary) Exam

Which action best applies the ALARA principle during obstetric sonography?

Use the highest output power continuously to speed scanning. Use the lowest acoustic output and shortest dwell time that still yield diagnostic images. Disable the thermal and mechanical index displays. Perform prolonged spectral Doppler sampling on every fetus regardless of indication.

Correct Answer:

Use the lowest acoustic output and shortest dwell time that still yield diagnostic images.

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