The nurse is providing care for a patient with a history of chronic obstructive pulmonary disease who is anticipating cardiac surgery.Which of the following diagnostic tests would most likely have been used to help determine surgical clearance?

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Pulmonary function tests are used to assess lung function and can provide information on the patient's ability to tolerate anesthesia and mechanical ventilation during surgery. Carotid Doppler studies are used to assess blood flow in the carotid arteries and are not typically used to determine surgical clearance for cardiac surgery. CT of the chest and lung V/Q scans may be useful in evaluating lung function, but pulmonary function tests are a more direct and comprehensive way to assess lung function.

The Nurse Is Providing Care for a Patient with a History