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Expiration-Inspiration Ratio

Purpose:

To evaluate the ECG of a patient during inspiration and expiration.

Specialty:

Cardiovascular Diseases, Internal Medicine, Internal Medicine/Pediatrics, Pulmonary Critical Care Medicine, Pulmonary Disease, Vascular Medicine, Internal Medicine/Pediatrics, Pediatric Pulmonology

Objective:

clinical diagnosis, including family history for genetics, other testing

ICD-10:

I00-I99, J00-J99

Description:

The expiration-inspiration (E-I) ratio is used to assess the reflex increase in the heart rate that occurs at the end of inspiration and the reflex decrease in heart rate that follows at the end of expiration.

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