From a midline position behind the patient, note the shape of the chest and the way in which it moves, including:

■ Deformities or asymmetry

■ Abnormal retraction of the interspaces during inspiration. Retraction is most apparent in the lower interspaces. Supraclavicular retraction is often associated.

See Table 6-4, Deformities of the Thorax (p. 239).

Retraction in severe asthma, COPD, or upper airway obstruction.

■ Impaired respiratory movement on one or both sides or a unilateral lag (or delay) in movement.

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Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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