In which of the following conditions is TLC always reduced? 

Results of a pre/post bronchodilator spirometry using unit does levalbuterol are as follows: Pre % Post % FVC 81 83 FEV1 61 76 FEF 25-75 54 71 FEF 200-1200 79 80 Which of the following best represents a correct interpretation of this data?

What term is used to describe a significant decrease in airflow during sleep but not a complete cessation of breathing? 

Silicone airway stents can only be placed via: 

Total lung capacity can be measured by all of the following except:

A physician will be sedating a patient for a procedure and asks a respiratory therapist to monitor the patient’s ventilation.   The therapist should select:

Lateral decubitus radiograph is often used to help confirm the following:   

A severe COPD patient is on a 28% air entrainment mask and has a PaO2 of 61 mm Hg.  Which of the following should the respiratory therapist recommend at this time?

What portion of the airway are bronchial washings generally obtained? 

A 45-year-old male patient that weights 150 kg is undergoing polysomnography to determine appropriate CPAP levels.  The patient’s baseline AHI is 51.  At a CPAP level of 9 cm H2O, the AHI is now 7.  The respiratory therapist should recommend which of the following?