Which elements should be included on ultrasound equipment labeling?

• A. BRN, ERA, frequency
• B. Serial number
• C. Manufacturer
• D. Warranty

Answer: (A)

Labeling ultrasound equipment should provide quick, essential cues that help you use the device safely and understand its capabilities. The BRN gives a unique registration or brand identifier, which helps you verify the device’s identity and trace it through procurement, maintenance, and safety records. The ERA communicates the device’s approved exposure-related parameters, guiding you to use the unit within documented safety and usage limits. The frequency tells you the ultrasound’s operating frequency, a fundamental parameter that affects image resolution and penetration depth, so you can select appropriate settings for the targeted tissue and depth.

Serial numbers and warranty are useful for service and administrative tracking, but they don’t directly inform safe operation or immediate-use decisions, which is why the combination including BRN, ERA, and frequency is prioritized for labeling.