Which of the following is a sign of poor lead attachment?

Frequent baseline wander is indeed a sign of poor lead attachment. When the electrodes are not securely attached to the patient's skin, they can move slightly, causing variations in the baseline of the electrocardiogram (ECG) readings. This instability leads to fluctuations in the tracing that can make it difficult to accurately interpret a patient's heart rhythm.

In contrast, consistent ECG tracings indicate secure lead placement and proper contact with the skin, allowing for reliable readings. A normal heart rate reflects the functioning of the heart rather than the quality of lead attachment. Clear signal quality usually suggests that the leads are well attached and that there are no interferences affecting the signal. Therefore, frequent baseline wander serves as a clear indicator of poor lead attachment and potential issues in monitoring the patient’s heart activity.