A tape measure placed around the thorax at the xiphoid level during maximal inhalation and exhalation is used to assess:

• 1 The symmetry and amount of thoracic excursion available during breathing ✓ 정답
• 2 The strength of the abdominal muscles during a forced cough
• 3 The percentage of oxygen saturation reached at peak inspiration
• 4 The total volume of air exhaled during a forced vital capacity test maneuver

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