Final answer:
To prevent somatic interference on an ECG tracing, ensure the patient is relaxed, use proper electrode placement, and avoid electrical devices or equipment that could cause interference.
Step-by-step explanation:
Somatic interference can be prevented on an ECG tracing by taking certain measures. One way is to ensure that the patient is in a relaxed state and avoid any movements or muscle contractions during the recording. Electrode placement is also crucial to minimize interference. Properly cleaning the skin and using adhesive electrodes can help improve the signal quality and reduce interference. Finally, avoiding electrical devices or equipment that could cause interference, such as cell phones or computers, in the vicinity of the ECG recording can also prevent somatic interference.