What is the role of ECG in severe asthma symptoms?

Updated: Nov 20, 2020
  • Author: Michael J Morris, MD, FACP, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Patients with asthma who are severely symptomatic should undergo ECG monitoring, as with any seriously ill patient. Sinus tachycardia and ECG evidence of right heart strain are common in patients with acute asthma. The use of beta2 -agonist therapy will cause a paradoxical decrease in heart rate as pulmonary function improves and symptoms are relieved. Supraventricular tachycardia raises the consideration of theophylline toxicity. Arrhythmias, other than supraventricular tachycardia, are rare.

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