Question

The nurse is reviewing the procedure for performance of an electrocardiogram (ECG). Which action by the nurse indicates understanding of the correct position for the V1 lead when performing a 12-lead electrocardiogram?

1."The lead should be placed on the fourth intercostal space left sternal border." (V2)
2."The lead should be placed on the fourth intercostal space right sternal border." (V1)
3."The lead should be placed on the fifth intercostal space left midaxillary line." (V6)
4."The lead should be placed on the fifth intercostal space left midclavicular line." (V4)

Answer 1

An understanding of the correct V1 lead placement in a 12-lead ECG is shown by placing the lead in the fourth intercostal space to the right of the sternum, which differs from the V4 placement at the fifth intercostal space on the left midclavicular line. Accurate lead placement is crucial for comprehensive heart health evaluation.

Step-by-step explanation:

The nurse demonstrates an understanding of the correct position for the V1 lead during a 12-lead electrocardiogram (ECG) procedure by placing the electrode in the fourth intercostal space, right margin of the sternum. This specific placement is crucial as each lead on an ECG provides a different angle of the heart's electrical activity, allowing for a comprehensive examination of heart health and function. In contrast, the V4 lead should be placed on the fifth intercostal space, left midclavicular line. An accurate placement of leads is important for detecting and diagnosing cardiac issues such as infarcts and arrhythmias.

The V1 lead is one of the six precordial or chest leads used in a standard ECG, which, together with the limb leads, make up the total 12 leads. This particular setup of electrodes can trace the electrical signals of the heart, enabling healthcare professionals to assess the heart's rhythm, identify any abnormalities, and gauge overall cardiac health.