How often should you recalibrate an ultrasound?

• A. Weekly
• B. Monthly
• C. Annually
• D. Biannually

Answer: (C)

Regular calibration keeps ultrasound measurements accurate as components age and conditions change. In most QA programs, a thorough calibration is performed by a qualified service technician once a year, with daily or session-based constancy checks and phantom tests used in between to catch any obvious degradation. Weekly or monthly recalibration would be unnecessarily frequent, and waiting biannually increases the risk that drift goes unchecked. If performance issues or major repairs occur, recalibration sooner may be needed.