Multiple choice

Which of the following respiratory function tests is used to measure exhaled carbon doxide concentration of client receiving mechanical ventilation?

  1. Pulmonary function test

  2. Pulse oximetry

  3. Capnography

  4. Arterial blood gas analysis

  5. Ventilation perfusion studies
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Capnography is a noninvasive procedure. It is used to measure exhaled carbon dioxide concentrations of client receiving mechanical ventilation. Capnography requires continuous sampling of exhaled air. The test is noninvasive and painless. Client who require capnography already have an endotracheal tube or tracheostomy tube in place for mechanical ventilation or airway management. A sensor is attached to the endotracheal tube or tracheostomy tube to measure end tidal carbon dioxide.

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