EMS 12-Lead

A reader by the name of Jesse contacted me and wrote: "I have a question. I’m trying to learn more about fascicular and hemi blocks. I was curious if you have posted, or intend to post, any information regarding these. I understand this is all done on your free time, so no rush at all. Any helpful information that you have the time to spare will be greatly appreciated." That sounded like a pretty good idea, so I thought I’d start with a left anterior fascicular block (LAFB).

35 year old male presents to the !re station complaining of an irregular heart beat. The patient states that he walked up to the top of the lighthouse earlier in the day and started to feel palpitations. He is on vacation and has been “drinking a lot” all week. He denies chest pain or shortness of breath although he appears anxious. Past medical history: Healthy Medications: None Allergies: NKDA Vital signs are assessed. RR: 18 HR: 54 (irregular) NIBP: 130/84 SpO2: 99 RA The