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Is it normal
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"sinus tachycardia" AND evaluation
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sinus tachycardia symptoms emergency chest pain fainting shortness of breath Mayo Clinic
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This ECG appears to show sinus tachycardia, meaning a regular heartbeat that is fast, roughly 140 beats/min. The printed machine interpretation seems to say “Sinus Tachycardia, Otherwise normal ECG.”
- This can be normal temporarily after exercise, anxiety, pain, fever, dehydration, caffeine, or pregnancy.
- It is not considered normal if you were resting and it remains around 140, especially if unexplained. Sinus tachycardia above 100 bpm should prompt consideration of reversible causes such as fever, anemia, dehydration, thyroid disease, infection, stimulants, or other illness. Harrison’s Principles of Internal Medicine 22E, section “Physiologic Sinus Tachycardia.”
- An ECG photo and the automatic reading cannot rule out every concern. Have the clinician who ordered it review the original tracing and your symptoms.
Seek urgent medical care now if this is ongoing with chest pain, fainting or near-fainting, severe shortness of breath, confusion, or marked weakness. Mayo Clinic guidance advises emergency evaluation for concerning breathing symptoms that could signal heart or lung problems.
If you tell me whether this was taken at rest and what symptoms you had, I can help put it in context.
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