What is true regarding augmented leads?

The lead wires are wrapped too closely together, and this artifact appears on the tracing.

The R wave is a large triangular shaped wave.

This artifact can occur if the electrodes are dirty or expired or if the gel on the electrodes is dried.

There is artifact on Leads II and III. What electrode would you check?

________ artifact appears as jagged peaks with irregular height and spacing.

The patient’s heart rate is 150 beats per minute. What changes should you make before obtaining the tracing?

A specialized intermodal tract that takes the impulse to the left atrium is:

A patient needs to do an exercise stress test. The patient can drink alcohol and caffeine until ____ hours before the test.

The impulse from the AV node is picked up by which of the following?