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What are things (at least 3) in this EKG that may give you clues about this patient's age?

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    • Respiratory variation of the heart rate suggest young in ag

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      • Also great HRV (heart rate variability) means that the patient autonomic nervous system is well adapted and very responsive to the environment (young and healthy 👍✅)

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        • Exactly!

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        • Thanks @Khaled Sleik, right on! Young patient.

          In addition to the(#1) respiratory variation in heart-rate described by Dr. Sleik (due to stronger autonomic influence on sinus node in younger patients), there is a relatively subtle, but noticeable (#2) minimal, concave ST elevation with distinct J point in several leads suggestive of early repolarization pattern (e.g., Leads V4-V6, II-III-AVF), which is a somehow prevalent in young African Amercian cohort, and finally (#3), a rightward QRS depolarization axis (between 80-90 degrees, with lead I is almost equal R and S) which is again more common in younger people compared to older people (as the axis shifts leftward as we get older).

          This EKG was done on a 22 year-old African American patient in the ED with URTI.

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