A muscle tremor would look like what on an EKG?

A muscle tremor on an EKG appears as a fuzzy irregular baseline because the involuntary muscle contractions create oscillations in the electrical signals being recorded. This interference can obscure the true cardiac electrical activity, leading to a chaotic and wiry baseline rather than a smooth or recognizable wave pattern associated with a normal heartbeat.

In the context of an EKG, a flatline does not provide any information about electrical activity and indicates a lack of cardiac activity, which is not characteristic of muscle tremors. A sharp spike might instead indicate a specific type of electrical impulse, such as a premature contraction or an artifact, while a consistent waveform would suggest stable electrical activity from the heart itself, which would not be present with muscle tremors. Therefore, the irregular and fuzzy appearance caused by muscle tremors effectively describes the resulting EKG pattern.