What action should be taken if an EKG detects alternating current interference?

When an EKG detects alternating current (AC) interference, it is typically caused by nearby electrical devices that emit electromagnetic fields affecting the signal being recorded. To address this issue effectively, unplugging or moving these nearby electrical devices can help reduce or eliminate the interference.

By doing so, the EKG machine is more likely to capture a clear and accurate representation of the patient’s heart activity without the noise introduced by extraneous electrical sources. This step is vital for ensuring the reliability of the EKG results, which are crucial for diagnosing various cardiac conditions.

The other options, while relevant in different contexts, do not specifically address the root cause of AC interference. Changing electrodes, for instance, is more suited for issues related to poor contact or electrode failure rather than interference from electrical devices. Changing leads might assist in specific readings, but it won’t resolve interference from surrounding electrics. Calibrating the machine is important for overall functionality, yet it will not correct the problem caused by external electrical currents. Thus, unplugging nearby electrical devices is the most direct and effective action to take in this situation.