I have everything needed to apply for this job except one thing...."Understanding of cardiac rhythms also required."I have medical secretary experience, medical terminology ( am currently a medical transcriptionist) and excellent computer skills. I finished a CNA course in August and will take my state test soon. I'm working one night a week as a CNA also. I'm also taking the pre-requisites for LPN.I'm familiar with cardiac rhythms and what they are, but of course, I don't think that's enough. This job is in the ICU Department so I'm sure it's an important skill.Where would I learn about cardiac rhythms? Is there a class I need to take? How could I acquire this skill/knowledge so I can apply? Any advice would be appreciated.