Test: Chest Expansion Test

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Background/Purpose

Procedure

Costovertebral motion is important for breathing function and thoracic spine mobility. Diaphragmatic breathing should normally occur however there are many individuals that primarily breath with their upper chest. To assess the movement of the costovertebral joints, a tape measure is placed around the chest of the individual at the fourth intercostal space. The patient is instructed to exhale completely and the first measurement is taken. The patient then inhales maximally and a second measurement is taken. Normal differences between these two measurements is 1.5-3 inches. Another method of measurement is to take the differences at three levels: under axila, nipple level, T10 rib level. This second variation would be considered failing if the differences were less than 3cm. A failing test is indicative and an akylosing process in the thoracic area, possibly ankylosing spondylitis.
Performed: Bilaterally

Dialog

A tape measure is placed around the chest of the individual at the fourth intercostal space. The patient is instructed to exhale completely and the first measurement is taken. The patient then inhales maximally and a second measurement is taken. Normal differences between these two measurements is 1.5-3 inches.

Criteria

• Exhale to Inhale expansion > 3 inches

Measurement

LOINC Code

0

Scale/Grading

Pass/Fail