What is the purpose of regular calibration and maintenance of vital signs equipment?

• A. To ensure accurate readings and proper functioning
• B. To extend battery life
• C. To change device color
• D. To change measurement units

Answer: (A)

Regular calibration and maintenance focus on accuracy and reliability of measurements. Calibration compares the device’s readings to known standards, ensuring what you see reflects the patient’s true vital signs. Over time, sensors can drift or degrade, so routine maintenance—checking probes and cables, cleaning components, replacing worn parts, and updating software—keeps the device functioning properly. When a monitor is calibrated and well maintained, alarms and trends reflect real changes in the patient, guiding safe and appropriate care.

Other options don’t fit because extending battery life, changing device color, or changing measurement units aren’t the primary goals of calibration or routine maintenance. Battery checks can occur during maintenance, but they don’t ensure measurement accuracy.