ARDMS Practice Test 2025 – Complete Exam Prep Guide

Minimizing exposure and using the lowest effective power settings is a fundamental safety measure when applying ultrasound in obstetric patients. This approach is guided by the principle of "as low as reasonably achievable" (ALARA), which emphasizes the need to reduce any potential risks associated with ultrasound exposure to both the mother and the fetus. By using the lowest effective power settings, clinicians can obtain the necessary diagnostic information while reducing the risk of heating and cavitation effects that may arise from higher power levels.

Ultrasound is considered a safe imaging modality, but careful attention to exposure parameters is essential, especially in sensitive populations like pregnant women. Maintaining low exposure ensures that the benefits of diagnostic imaging are achieved without unnecessary risk to the developing fetus. This practice is supported by guidelines from health organizations and contributes to the overall safety and efficacy of ultrasound in obstetrics.